125254089961 has 16 divisors (see below), whose sum is σ = 168173324928. Its totient is φ = 90092851200.

The previous prime is 125254089953. The next prime is 125254089973. The reversal of 125254089961 is 169980452521.

It is a happy number.

It is not a de Polignac number, because 125254089961 - 2³ = 125254089953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125254089899 and 125254089908.

It is not an unprimeable number, because it can be changed into a prime (125254089361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62563480 + ... + 62565481.

It is an arithmetic number, because the mean of its divisors is an integer number (10510832808).

Almost surely, 2^125254089961 is an apocalyptic number.

125254089961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125254089961 is a deficient number, since it is larger than the sum of its proper divisors (42919234967).

125254089961 is a wasteful number, since it uses less digits than its factorization.

125254089961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125128992.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 125254089961 in words is "one hundred twenty-five billion, two hundred fifty-four million, eighty-nine thousand, nine hundred sixty-one".