255700488906 has 32 divisors (see below), whose sum is σ = 575069382720. Its totient is φ = 84206585232.

The previous prime is 255700488887. The next prime is 255700488907. The reversal of 255700488906 is 609884007552.

255700488906 is a `hidden beast` number, since 2 + 5 + 5 + 70 + 0 + 488 + 90 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (255700488907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28520785 + ... + 28529748.

It is an arithmetic number, because the mean of its divisors is an integer number (17970918210).

Almost surely, 2^255700488906 is an apocalyptic number.

255700488906 is an abundant number, since it is smaller than the sum of its proper divisors (319368893814).

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

255700488906 is a wasteful number, since it uses less digits than its factorization.

255700488906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57050627 (or 57050621 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 255700488906 in words is "two hundred fifty-five billion, seven hundred million, four hundred eighty-eight thousand, nine hundred six".