256102502 has 4 divisors (see below), whose sum is σ = 384153756. Its totient is φ = 128051250.

The previous prime is 256102499. The next prime is 256102529. The reversal of 256102502 is 205201652.

256102502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64025624 + ... + 64025627.

It is an arithmetic number, because the mean of its divisors is an integer number (96038439).

Almost surely, 2^256102502 is an apocalyptic number.

256102502 is a deficient number, since it is larger than the sum of its proper divisors (128051254).

256102502 is a wasteful number, since it uses less digits than its factorization.

256102502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128051253.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 256102502 is about 16003.2028669264. The cubic root of 256102502 is about 635.0451551992.

The spelling of 256102502 in words is "two hundred fifty-six million, one hundred two thousand, five hundred two".