256202725400 has 48 divisors (see below), whose sum is σ = 596543794200. Its totient is φ = 102330990080.

The previous prime is 256202725381. The next prime is 256202725417. The reversal of 256202725400 is 4527202652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801185 + ... + 1074384.

Almost surely, 2^256202725400 is an apocalyptic number.

256202725400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256202725400 is an abundant number, since it is smaller than the sum of its proper divisors (340341068800).

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

256202725400 is a wasteful number, since it uses less digits than its factorization.

256202725400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876268 (or 1876259 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 256202725400 in words is "two hundred fifty-six billion, two hundred two million, seven hundred twenty-five thousand, four hundred".