125372553705 has 72 divisors (see below), whose sum is σ = 262154797632. Its totient is φ = 57313140192.

The previous prime is 125372553667. The next prime is 125372553727. The reversal of 125372553705 is 507355273521.

125372553705 is a `hidden beast` number, since 1 + 25 + 3 + 7 + 2 + 553 + 70 + 5 = 666.

It is not a de Polignac number, because 125372553705 - 2¹⁴ = 125372537321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 993397 + ... + 1112466.

It is an arithmetic number, because the mean of its divisors is an integer number (3641038856).

Almost surely, 2^125372553705 is an apocalyptic number.

125372553705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125372553705 is an abundant number, since it is smaller than the sum of its proper divisors (136782243927).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125372553705 is an equidigital number, since it uses as much as digits as its factorization.

125372553705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105897 (or 2105878 counting only the distinct ones).

The product of its (nonzero) digits is 1102500, while the sum is 45.

The spelling of 125372553705 in words is "one hundred twenty-five billion, three hundred seventy-two million, five hundred fifty-three thousand, seven hundred five".