1251415041255 has 48 divisors (see below), whose sum is σ = 2177006008320. Its totient is φ = 664999070400.

The previous prime is 1251415041209. The next prime is 1251415041257. The reversal of 1251415041255 is 5521405141521.

1251415041255 is a `hidden beast` number, since 1 + 2 + 5 + 141 + 50 + 412 + 55 = 666.

It is not a de Polignac number, because 1251415041255 - 2¹⁶ = 1251414975719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251415041257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13897066 + ... + 13986824.

It is an arithmetic number, because the mean of its divisors is an integer number (45354291840).

Almost surely, 2^{1251415041255} is an apocalyptic number.

1251415041255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1251415041255 is a deficient number, since it is larger than the sum of its proper divisors (925590967065).

1251415041255 is a wasteful number, since it uses less digits than its factorization.

1251415041255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90892 (or 90889 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The spelling of 1251415041255 in words is "one trillion, two hundred fifty-one billion, four hundred fifteen million, forty-one thousand, two hundred fifty-five".