51712550 has 12 divisors (see below), whose sum is σ = 96185436. Its totient is φ = 20685000.

The previous prime is 51712541. The next prime is 51712571. The reversal of 51712550 is 5521715.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 517076 + ... + 517175.

It is an arithmetic number, because the mean of its divisors is an integer number (8015453).

Almost surely, 2^51712550 is an apocalyptic number.

51712550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51712550 is a deficient number, since it is larger than the sum of its proper divisors (44472886).

51712550 is a wasteful number, since it uses less digits than its factorization.

51712550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034263 (or 1034258 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 51712550 is about 7191.1438589421. The cubic root of 51712550 is about 372.5620814505.

The spelling of 51712550 in words is "fifty-one million, seven hundred twelve thousand, five hundred fifty".