253502030 has 16 divisors (see below), whose sum is σ = 459789264. Its totient is φ = 100626240.

The previous prime is 253501991. The next prime is 253502069. The reversal of 253502030 is 30205352.

It is an interprime number because it is at equal distance from previous prime (253501991) and next prime (253502069).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253501993 and 253502011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95447 + ... + 98066.

It is an arithmetic number, because the mean of its divisors is an integer number (28736829).

Almost surely, 2^253502030 is an apocalyptic number.

253502030 is a deficient number, since it is larger than the sum of its proper divisors (206287234).

253502030 is a wasteful number, since it uses less digits than its factorization.

253502030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193651.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 253502030 is about 15921.7470775038. The cubic root of 253502030 is about 632.8884166667. Note that the first 3 decimals are identical.

Adding to 253502030 its reverse (30205352), we get a palindrome (283707382).

The spelling of 253502030 in words is "two hundred fifty-three million, five hundred two thousand, thirty".