125604225451 has 4 divisors (see below), whose sum is σ = 125605695600. Its totient is φ = 125602755304.

The previous prime is 125604225449. The next prime is 125604225521. The reversal of 125604225451 is 154522406521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154522406521 = 7 ⋅22074629503.

It is a cyclic number.

It is not a de Polignac number, because 125604225451 - 2¹ = 125604225449 is a prime.

It is a super-2 number, since 2×125604225451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125604225451.

It is not an unprimeable number, because it can be changed into a prime (125604225431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598456 + ... + 780613.

It is an arithmetic number, because the mean of its divisors is an integer number (31401423900).

Almost surely, 2^125604225451 is an apocalyptic number.

125604225451 is a deficient number, since it is larger than the sum of its proper divisors (1470149).

125604225451 is an equidigital number, since it uses as much as digits as its factorization.

125604225451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470148.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 125604225451 in words is "one hundred twenty-five billion, six hundred four million, two hundred twenty-five thousand, four hundred fifty-one".