612547670225 has 12 divisors (see below), whose sum is σ = 770257128960. Its totient is φ = 483136189200.

The previous prime is 612547670209. The next prime is 612547670263. The reversal of 612547670225 is 522076745216.

It is not a de Polignac number, because 612547670225 - 2⁴ = 612547670209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612547670225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172546865 + ... + 172550414.

It is an arithmetic number, because the mean of its divisors is an integer number (64188094080).

Almost surely, 2^612547670225 is an apocalyptic number.

It is an amenable number.

612547670225 is a deficient number, since it is larger than the sum of its proper divisors (157709458735).

612547670225 is a wasteful number, since it uses less digits than its factorization.

612547670225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345097360 (or 345097355 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 612547670225 in words is "six hundred twelve billion, five hundred forty-seven million, six hundred seventy thousand, two hundred twenty-five".