253683520 has 56 divisors (see below), whose sum is σ = 639631944. Its totient is φ = 95502336.

The previous prime is 253683511. The next prime is 253683557. The reversal of 253683520 is 25386352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27962944 + 225720576 = 5288^2 + 15024^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17877 + ... + 28756.

It is an arithmetic number, because the mean of its divisors is an integer number (11421999).

Almost surely, 2^253683520 is an apocalyptic number.

253683520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253683520 is an abundant number, since it is smaller than the sum of its proper divisors (385948424).

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

253683520 is a wasteful number, since it uses less digits than its factorization.

253683520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46667 (or 46657 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 253683520 is about 15927.4454951194. The cubic root of 253683520 is about 633.0394154816.

The spelling of 253683520 in words is "two hundred fifty-three million, six hundred eighty-three thousand, five hundred twenty".