125405522 has 32 divisors (see below), whose sum is σ = 215792640. Its totient is φ = 54101520.

The previous prime is 125405519. The next prime is 125405537. The reversal of 125405522 is 225504521.

It is a junction number, because it is equal to n+sod(n) for n = 125405491 and 125405500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69443 + ... + 71225.

It is an arithmetic number, because the mean of its divisors is an integer number (6743520).

Almost surely, 2^125405522 is an apocalyptic number.

125405522 is a deficient number, since it is larger than the sum of its proper divisors (90387118).

125405522 is a wasteful number, since it uses less digits than its factorization.

125405522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 125405522 is about 11198.4606977924. The cubic root of 125405522 is about 500.5401123472.

The spelling of 125405522 in words is "one hundred twenty-five million, four hundred five thousand, five hundred twenty-two".