125534425231 has 4 divisors (see below), whose sum is σ = 125635909432. Its totient is φ = 125432941032.

The previous prime is 125534425223. The next prime is 125534425271. The reversal of 125534425231 is 132524435521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125534425231 - 2³ = 125534425223 is a prime.

It is a super-2 number, since 2×125534425231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125534425271) 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, 50740245 + ... + 50742718.

It is an arithmetic number, because the mean of its divisors is an integer number (31408977358).

Almost surely, 2^125534425231 is an apocalyptic number.

125534425231 is a deficient number, since it is larger than the sum of its proper divisors (101484201).

125534425231 is a wasteful number, since it uses less digits than its factorization.

125534425231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101484200.

The product of its digits is 144000, while the sum is 37.

The spelling of 125534425231 in words is "one hundred twenty-five billion, five hundred thirty-four million, four hundred twenty-five thousand, two hundred thirty-one".