1255900235900 has 18 divisors (see below), whose sum is σ = 2725303512120. Its totient is φ = 502360094320.

The previous prime is 1255900235899. The next prime is 1255900235921. The reversal of 1255900235900 is 95320095521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6279501080 + ... + 6279501279.

Almost surely, 2^{1255900235900} is an apocalyptic number.

1255900235900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255900235900 is an abundant number, since it is smaller than the sum of its proper divisors (1469403276220).

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

1255900235900 is a wasteful number, since it uses less digits than its factorization.

1255900235900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12559002373 (or 12559002366 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 41.

The spelling of 1255900235900 in words is "one trillion, two hundred fifty-five billion, nine hundred million, two hundred thirty-five thousand, nine hundred".