51485788 has 24 divisors (see below), whose sum is σ = 94273200. Its totient is φ = 24571008.

The previous prime is 51485783. The next prime is 51485803. The reversal of 51485788 is 88758415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51485783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7831 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (3928050).

Almost surely, 2^51485788 is an apocalyptic number.

51485788 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51485788 is a deficient number, since it is larger than the sum of its proper divisors (42787412).

51485788 is a wasteful number, since it uses less digits than its factorization.

51485788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5107 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The square root of 51485788 is about 7175.3597819203. The cubic root of 51485788 is about 372.0167160176.

The spelling of 51485788 in words is "fifty-one million, four hundred eighty-five thousand, seven hundred eighty-eight".