255402332400 has 60 divisors (see below), whose sum is σ = 818138808632. Its totient is φ = 68107288320.

The previous prime is 255402332357. The next prime is 255402332411. The reversal of 255402332400 is 4233204552.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 106416439 + ... + 106418838.

Almost surely, 2^255402332400 is an apocalyptic number.

255402332400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255402332400 is an abundant number, since it is smaller than the sum of its proper divisors (562736476232).

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

255402332400 is a wasteful number, since it uses less digits than its factorization.

255402332400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212835298 (or 212835287 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 255402332400 its reverse (4233204552), we get a palindrome (259635536952).

The spelling of 255402332400 in words is "two hundred fifty-five billion, four hundred two million, three hundred thirty-two thousand, four hundred".