125426624521 has 4 divisors (see below), whose sum is σ = 136829044944. Its totient is φ = 114024204100.

The previous prime is 125426624501. The next prime is 125426624599.

125426624521 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125426624521 - 2²⁹ = 124889753609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125426624501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701210195 + ... + 5701210216.

It is an arithmetic number, because the mean of its divisors is an integer number (34207261236).

Almost surely, 2^125426624521 is an apocalyptic number.

125426624521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125426624521 is a deficient number, since it is larger than the sum of its proper divisors (11402420423).

125426624521 is a wasteful number, since it uses less digits than its factorization.

125426624521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402420422.

The product of its digits is 230400, while the sum is 40.

It can be divided in two parts, 125426 and 624521, that added together give a palindrome (749947).

The spelling of 125426624521 in words is "one hundred twenty-five billion, four hundred twenty-six million, six hundred twenty-four thousand, five hundred twenty-one".