125375376505 has 16 divisors (see below), whose sum is σ = 155704194000. Its totient is φ = 96800730880.

The previous prime is 125375376491. The next prime is 125375376569. The reversal of 125375376505 is 505673573521.

It can be written as a sum of positive squares in 8 ways, for example, as 22347858064 + 103027518441 = 149492^2 + 320979^2 .

It is not a de Polignac number, because 125375376505 - 2⁷ = 125375376377 is a prime.

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, 163671 + ... + 526819.

It is an arithmetic number, because the mean of its divisors is an integer number (9731512125).

Almost surely, 2^125375376505 is an apocalyptic number.

It is an amenable number.

125375376505 is a deficient number, since it is larger than the sum of its proper divisors (30328817495).

125375376505 is a wasteful number, since it uses less digits than its factorization.

125375376505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365564.

The product of its (nonzero) digits is 3307500, while the sum is 49.

The spelling of 125375376505 in words is "one hundred twenty-five billion, three hundred seventy-five million, three hundred seventy-six thousand, five hundred five".