255555025025 has 36 divisors (see below), whose sum is σ = 339980791920. Its totient is φ = 190028404800.

The previous prime is 255555025021. The next prime is 255555025043. The reversal of 255555025025 is 520520555552.

It is not a de Polignac number, because 255555025025 - 2² = 255555025021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255555025021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1238510 + ... + 1430040.

Almost surely, 2^255555025025 is an apocalyptic number.

255555025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255555025025 is a deficient number, since it is larger than the sum of its proper divisors (84425766895).

255555025025 is a wasteful number, since it uses less digits than its factorization.

255555025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191666 (or 191608 counting only the distinct ones).

The product of its (nonzero) digits is 625000, while the sum is 41.

The spelling of 255555025025 in words is "two hundred fifty-five billion, five hundred fifty-five million, twenty-five thousand, twenty-five".