253606236 has 48 divisors (see below), whose sum is σ = 641018784. Its totient is φ = 77573376.

The previous prime is 253606229. The next prime is 253606237. The reversal of 253606236 is 632606352.

253606236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×253606236² = 128632245876175392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253606197 and 253606206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253606237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22290 + ... + 31686.

It is an arithmetic number, because the mean of its divisors is an integer number (13354558).

Almost surely, 2^253606236 is an apocalyptic number.

253606236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253606236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320509392).

253606236 is an abundant number, since it is smaller than the sum of its proper divisors (387412548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253606236 is a wasteful number, since it uses less digits than its factorization.

253606236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590 (or 9588 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 253606236 is about 15925.0191836619. The cubic root of 253606236 is about 632.9751243690.

The spelling of 253606236 in words is "two hundred fifty-three million, six hundred six thousand, two hundred thirty-six".