125527342261 has 4 divisors (see below), whose sum is σ = 125529694624. Its totient is φ = 125524989900.

The previous prime is 125527342249. The next prime is 125527342279. The reversal of 125527342261 is 162243725521.

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 125527342261 - 2²⁵ = 125493787829 is a prime.

It is a super-2 number, since 2×125527342261² (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 (125527342201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1094235 + ... + 1203496.

It is an arithmetic number, because the mean of its divisors is an integer number (31382423656).

Almost surely, 2^125527342261 is an apocalyptic number.

It is an amenable number.

125527342261 is a deficient number, since it is larger than the sum of its proper divisors (2352363).

125527342261 is an equidigital number, since it uses as much as digits as its factorization.

125527342261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352362.

The product of its digits is 201600, while the sum is 40.

The spelling of 125527342261 in words is "one hundred twenty-five billion, five hundred twenty-seven million, three hundred forty-two thousand, two hundred sixty-one".