51762090 has 32 divisors (see below), whose sum is σ = 127262016. Its totient is φ = 13466240.

The previous prime is 51762083. The next prime is 51762103. The reversal of 51762090 is 9026715.

It is a super-2 number, since 2×51762090² = 5358627922336200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19812 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (3976938).

Almost surely, 2^51762090 is an apocalyptic number.

51762090 is an abundant number, since it is smaller than the sum of its proper divisors (75499926).

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

51762090 is a wasteful number, since it uses less digits than its factorization.

51762090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42134.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 51762090 is about 7194.5875489843. The cubic root of 51762090 is about 372.6810134755.

The spelling of 51762090 in words is "fifty-one million, seven hundred sixty-two thousand, ninety".