255401653 has 8 divisors (see below), whose sum is σ = 283920896. Its totient is φ = 228150000.

The previous prime is 255401623. The next prime is 255401681. The reversal of 255401653 is 356104552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255401653 - 2⁵ = 255401621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255401623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 316473 + ... + 317278.

It is an arithmetic number, because the mean of its divisors is an integer number (35490112).

Almost surely, 2^255401653 is an apocalyptic number.

It is an amenable number.

255401653 is a deficient number, since it is larger than the sum of its proper divisors (28519243).

255401653 is a wasteful number, since it uses less digits than its factorization.

255401653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633795.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 255401653 is about 15981.2907175860. The cubic root of 255401653 is about 634.4653386938.

The spelling of 255401653 in words is "two hundred fifty-five million, four hundred one thousand, six hundred fifty-three".