511612225 has 12 divisors (see below), whose sum is σ = 635686000. Its totient is φ = 408459600.

The previous prime is 511612193. The next prime is 511612267. The reversal of 511612225 is 522216115.

It is not a de Polignac number, because 511612225 - 2⁵ = 511612193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 511612225.

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, 8031 + ... + 32980.

Almost surely, 2^511612225 is an apocalyptic number.

It is an amenable number.

511612225 is a deficient number, since it is larger than the sum of its proper divisors (124073775).

511612225 is a wasteful number, since it uses less digits than its factorization.

511612225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41520 (or 41515 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 511612225 is about 22618.8466770523. The cubic root of 511612225 is about 799.7979828448.

The spelling of 511612225 in words is "five hundred eleven million, six hundred twelve thousand, two hundred twenty-five".