255072987 has 12 divisors (see below), whose sum is σ = 396780384. Its totient is φ = 156967920.

The previous prime is 255072949. The next prime is 255073001. The reversal of 255072987 is 789270552.

It is a happy number.

255072987 is a `hidden beast` number, since 2 + 550 + 7 + 2 + 98 + 7 = 666.

It is not a de Polignac number, because 255072987 - 2¹¹ = 255070939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255072907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1089939 + ... + 1090172.

It is an arithmetic number, because the mean of its divisors is an integer number (33065032).

Almost surely, 2^255072987 is an apocalyptic number.

255072987 is a deficient number, since it is larger than the sum of its proper divisors (141707397).

255072987 is a wasteful number, since it uses less digits than its factorization.

255072987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180130 (or 2180127 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 255072987 is about 15971.0045707839. The cubic root of 255072987 is about 634.1930659879.

The spelling of 255072987 in words is "two hundred fifty-five million, seventy-two thousand, nine hundred eighty-seven".