125564561058249 has 24 divisors (see below), whose sum is σ = 190247602701312. Its totient is φ = 79650939382080.

The previous prime is 125564561058239. The next prime is 125564561058319. The reversal of 125564561058249 is 942850165465521.

125564561058249 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 6 + 4 + 5 + 6 + 1 + 0 + 582 + 49 = 666.

It is not a de Polignac number, because 125564561058249 - 2¹⁵ = 125564561025481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125564561058239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1587897852 + ... + 1587976925.

It is an arithmetic number, because the mean of its divisors is an integer number (7926983445888).

Almost surely, 2^{125564561058249} is an apocalyptic number.

It is an amenable number.

125564561058249 is a deficient number, since it is larger than the sum of its proper divisors (64683041643063).

125564561058249 is a wasteful number, since it uses less digits than its factorization.

125564561058249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175874997 (or 3175874994 counting only the distinct ones).

The product of its (nonzero) digits is 103680000, while the sum is 63.

The spelling of 125564561058249 in words is "one hundred twenty-five trillion, five hundred sixty-four billion, five hundred sixty-one million, fifty-eight thousand, two hundred forty-nine".