255151515 has 16 divisors (see below), whose sum is σ = 408446496. Its totient is φ = 136012800.

The previous prime is 255151469. The next prime is 255151531. The reversal of 255151515 is 515151552.

It is not a de Polignac number, because 255151515 - 2⁷ = 255151387 is a prime.

255151515 is a modest number, since divided by 151515 gives 255 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45675 + ... + 50955.

It is an arithmetic number, because the mean of its divisors is an integer number (25527906).

Almost surely, 2^255151515 is an apocalyptic number.

255151515 is a deficient number, since it is larger than the sum of its proper divisors (153294981).

255151515 is a wasteful number, since it uses less digits than its factorization.

255151515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8510.

The product of its digits is 6250, while the sum is 30.

The square root of 255151515 is about 15973.4628368429. The cubic root of 255151515 is about 634.2581412223.

The spelling of 255151515 in words is "two hundred fifty-five million, one hundred fifty-one thousand, five hundred fifteen".