255525354220400 has 120 divisors (see below), whose sum is σ = 669721130640000. Its totient is φ = 92916589254400.

The previous prime is 255525354220399. The next prime is 255525354220453. The reversal of 255525354220400 is 4022453525552.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250286171 + ... + 251305029.

It is an arithmetic number, because the mean of its divisors is an integer number (5581009422000).

Almost surely, 2^{255525354220400} is an apocalyptic number.

255525354220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255525354220400 is an abundant number, since it is smaller than the sum of its proper divisors (414195776419600).

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

255525354220400 is a wasteful number, since it uses less digits than its factorization.

255525354220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075887 (or 1075876 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 44.

The spelling of 255525354220400 in words is "two hundred fifty-five trillion, five hundred twenty-five billion, three hundred fifty-four million, two hundred twenty thousand, four hundred".