51772190 has 16 divisors (see below), whose sum is σ = 94238640. Its totient is φ = 20475840.

The previous prime is 51772187. The next prime is 51772211. The reversal of 51772190 is 9127715.

It is a super-2 number, since 2×51772190² = 5360719314792200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28196 + ... + 29975.

It is an arithmetic number, because the mean of its divisors is an integer number (5889915).

Almost surely, 2^51772190 is an apocalyptic number.

51772190 is a deficient number, since it is larger than the sum of its proper divisors (42466450).

51772190 is a wasteful number, since it uses less digits than its factorization.

51772190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58267.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 51772190 is about 7195.2894312877. The cubic root of 51772190 is about 372.7052515067.

The spelling of 51772190 in words is "fifty-one million, seven hundred seventy-two thousand, one hundred ninety".