612112625 has 16 divisors (see below), whose sum is σ = 808855632. Its totient is φ = 460883200.

The previous prime is 612112609. The next prime is 612112637. The reversal of 612112625 is 526211216.

It can be written as a sum of positive squares in 8 ways, for example, as 341806144 + 270306481 = 18488^2 + 16441^2 .

It is not a de Polignac number, because 612112625 - 2⁴ = 612112609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612112594 and 612112603.

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, 141902 + ... + 146151.

It is an arithmetic number, because the mean of its divisors is an integer number (50553477).

Almost surely, 2^612112625 is an apocalyptic number.

It is an amenable number.

612112625 is a deficient number, since it is larger than the sum of its proper divisors (196743007).

612112625 is a wasteful number, since it uses less digits than its factorization.

612112625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288085 (or 288075 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 612112625 is about 24740.9099468876. The cubic root of 612112625 is about 849.0705526775.

It can be divided in two parts, 61211 and 2625, that added together give a palindrome (63836).

The spelling of 612112625 in words is "six hundred twelve million, one hundred twelve thousand, six hundred twenty-five".