125252237545 has 16 divisors (see below), whose sum is σ = 153159876432. Its totient is φ = 98297521920.

The previous prime is 125252237471. The next prime is 125252237629. The reversal of 125252237545 is 545732252521.

It can be written as a sum of positive squares in 8 ways, for example, as 8772008281 + 116480229264 = 93659^2 + 341292^2 .

It is a de Polignac number, because none of the positive numbers 2^k-125252237545 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149819 + ... + 2207311.

It is an arithmetic number, because the mean of its divisors is an integer number (9572492277).

Almost surely, 2^125252237545 is an apocalyptic number.

It is an amenable number.

125252237545 is a deficient number, since it is larger than the sum of its proper divisors (27907638887).

125252237545 is an equidigital number, since it uses as much as digits as its factorization.

125252237545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65772.

The product of its digits is 840000, while the sum is 43.

The spelling of 125252237545 in words is "one hundred twenty-five billion, two hundred fifty-two million, two hundred thirty-seven thousand, five hundred forty-five".