51474768 has 40 divisors (see below), whose sum is σ = 137565600. Its totient is φ = 16566144.

The previous prime is 51474767. The next prime is 51474769. The reversal of 51474768 is 86747415.

It is an interprime number because it is at equal distance from previous prime (51474767) and next prime (51474769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51474763) 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, 17098 + ... + 19881.

It is an arithmetic number, because the mean of its divisors is an integer number (3439140).

Almost surely, 2^51474768 is an apocalyptic number.

51474768 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51474768 is an abundant number, since it is smaller than the sum of its proper divisors (86090832).

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

51474768 is a wasteful number, since it uses less digits than its factorization.

51474768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37019 (or 37013 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 51474768 is about 7174.5918350802. The cubic root of 51474768 is about 371.9901720146.

The spelling of 51474768 in words is "fifty-one million, four hundred seventy-four thousand, seven hundred sixty-eight".