102557256 has 32 divisors (see below), whose sum is σ = 256651200. Its totient is φ = 34151360.

The previous prime is 102557251. The next prime is 102557261. The reversal of 102557256 is 652755201.

It is an interprime number because it is at equal distance from previous prime (102557251) and next prime (102557261).

It is not an unprimeable number, because it can be changed into a prime (102557251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36046 + ... + 38786.

It is an arithmetic number, because the mean of its divisors is an integer number (8020350).

Almost surely, 2^102557256 is an apocalyptic number.

It is an amenable number.

102557256 is an abundant number, since it is smaller than the sum of its proper divisors (154093944).

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

102557256 is a wasteful number, since it uses less digits than its factorization.

102557256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 102557256 is about 10127.0556431768. The cubic root of 102557256 is about 468.0822048599.

The spelling of 102557256 in words is "one hundred two million, five hundred fifty-seven thousand, two hundred fifty-six".