613125299522 has 6 divisors (see below), whose sum is σ = 919689610329. Its totient is φ = 306562096080.

The previous prime is 613125299509. The next prime is 613125299557. The reversal of 613125299522 is 225992521316.

It can be written as a sum of positive squares in 2 ways, for example, as 486211949521 + 126913350001 = 697289^2 + 356249^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=553681.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 830522 + ... + 1384202.

Almost surely, 2^613125299522 is an apocalyptic number.

613125299522 is a deficient number, since it is larger than the sum of its proper divisors (306564310807).

613125299522 is an frugal number, since it uses more digits than its factorization.

613125299522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107364 (or 553683 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The spelling of 613125299522 in words is "six hundred thirteen billion, one hundred twenty-five million, two hundred ninety-nine thousand, five hundred twenty-two".