51817332 has 48 divisors (see below), whose sum is σ = 145456640. Its totient is φ = 14025312.

The previous prime is 51817327. The next prime is 51817333. The reversal of 51817332 is 23371815.

It is a self number, because there is not a number n which added to its sum of digits gives 51817332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51817333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14638 + ... + 17829.

Almost surely, 2^51817332 is an apocalyptic number.

It is an amenable number.

51817332 is an abundant number, since it is smaller than the sum of its proper divisors (93639308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51817332 is a wasteful number, since it uses less digits than its factorization.

51817332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32500 (or 32498 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 51817332 is about 7198.4256612123. The cubic root of 51817332 is about 372.8135449928.

The spelling of 51817332 in words is "fifty-one million, eight hundred seventeen thousand, three hundred thirty-two".