51977304 has 96 divisors (see below), whose sum is σ = 146718000. Its totient is φ = 16609536.

The previous prime is 51977291. The next prime is 51977311. The reversal of 51977304 is 40377915.

It is a happy number.

It is a super-2 number, since 2×51977304² = 5403280262216832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290287 + ... + 290465.

Almost surely, 2^51977304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51977304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73359000).

51977304 is an abundant number, since it is smaller than the sum of its proper divisors (94740696).

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

51977304 is a wasteful number, since it uses less digits than its factorization.

51977304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 51977304 is about 7209.5286947206. The cubic root of 51977304 is about 373.1968045273.

The spelling of 51977304 in words is "fifty-one million, nine hundred seventy-seven thousand, three hundred four".