255411540 has 36 divisors (see below), whose sum is σ = 774748884. Its totient is φ = 68109696.

The previous prime is 255411521. The next prime is 255411551. The reversal of 255411540 is 45114552.

255411540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 163481796 + 91929744 = 12786^2 + 9588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 709297 + ... + 709656.

Almost surely, 2^255411540 is an apocalyptic number.

255411540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255411540 is an abundant number, since it is smaller than the sum of its proper divisors (519337344).

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

255411540 is a wasteful number, since it uses less digits than its factorization.

255411540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418968 (or 1418963 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 255411540 is about 15981.6000450518. The cubic root of 255411540 is about 634.4735256388.

The spelling of 255411540 in words is "two hundred fifty-five million, four hundred eleven thousand, five hundred forty".