125652361061 has 4 divisors (see below), whose sum is σ = 126764328972. Its totient is φ = 124540393152.

The previous prime is 125652361057. The next prime is 125652361063. The reversal of 125652361061 is 160163256521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160163256521 = 97 ⋅1651167593.

It can be written as a sum of positive squares in 2 ways, for example, as 45761338561 + 79891022500 = 213919^2 + 282650^2 .

It is a cyclic number.

It is not a de Polignac number, because 125652361061 - 2² = 125652361057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125652361063) 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, 555983786 + ... + 555984011.

It is an arithmetic number, because the mean of its divisors is an integer number (31691082243).

Almost surely, 2^125652361061 is an apocalyptic number.

It is an amenable number.

125652361061 is a deficient number, since it is larger than the sum of its proper divisors (1111967911).

125652361061 is a wasteful number, since it uses less digits than its factorization.

125652361061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111967910.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 125652361061 in words is "one hundred twenty-five billion, six hundred fifty-two million, three hundred sixty-one thousand, sixty-one".