255916542 has 32 divisors (see below), whose sum is σ = 595994112. Its totient is φ = 71738784.

The previous prime is 255916541. The next prime is 255916543. The reversal of 255916542 is 245619552.

It is an interprime number because it is at equal distance from previous prime (255916541) and next prime (255916543).

It is a self number, because there is not a number n which added to its sum of digits gives 255916542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255916541) 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, 55258 + ... + 59709.

It is an arithmetic number, because the mean of its divisors is an integer number (18624816).

Almost surely, 2^255916542 is an apocalyptic number.

255916542 is an abundant number, since it is smaller than the sum of its proper divisors (340077570).

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

255916542 is a wasteful number, since it uses less digits than its factorization.

255916542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115032.

The product of its digits is 108000, while the sum is 39.

The square root of 255916542 is about 15997.3917249032. The cubic root of 255916542 is about 634.8914126017.

The spelling of 255916542 in words is "two hundred fifty-five million, nine hundred sixteen thousand, five hundred forty-two".