255441400542015 has 32 divisors (see below), whose sum is σ = 414822743064576. Its totient is φ = 134196740430720.

The previous prime is 255441400541981. The next prime is 255441400542047. The reversal of 255441400542015 is 510245004144552.

It is not a de Polignac number, because 255441400542015 - 2⁸ = 255441400541759 is a prime.

It is a super-2 number, since 2×255441400542015² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20455105 + ... + 30484325.

It is an arithmetic number, because the mean of its divisors is an integer number (12963210720768).

Almost surely, 2^{255441400542015} is an apocalyptic number.

255441400542015 is a deficient number, since it is larger than the sum of its proper divisors (159381342522561).

255441400542015 is a wasteful number, since it uses less digits than its factorization.

255441400542015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054639.

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 255441400542015 its reverse (510245004144552), we get a palindrome (765686404686567).

The spelling of 255441400542015 in words is "two hundred fifty-five trillion, four hundred forty-one billion, four hundred million, five hundred forty-two thousand, fifteen".