125620817522 has 16 divisors (see below), whose sum is σ = 189177690240. Its totient is φ = 62561663712.

The previous prime is 125620817521. The next prime is 125620817527. The reversal of 125620817522 is 225718026521.

It is a self number, because there is not a number n which added to its sum of digits gives 125620817522.

It is not an unprimeable number, because it can be changed into a prime (125620817521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189379 + ... + 4219257.

It is an arithmetic number, because the mean of its divisors is an integer number (11823605640).

Almost surely, 2^125620817522 is an apocalyptic number.

125620817522 is a deficient number, since it is larger than the sum of its proper divisors (63556872718).

125620817522 is a wasteful number, since it uses less digits than its factorization.

125620817522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38137.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 125620817522 in words is "one hundred twenty-five billion, six hundred twenty million, eight hundred seventeen thousand, five hundred twenty-two".