51968628 has 30 divisors (see below), whose sum is σ = 135857106. Its totient is φ = 17322768.

The previous prime is 51968611. The next prime is 51968633. The reversal of 51968628 is 82686915.

51968628 is a `hidden beast` number, since 5 + 19 + 6 + 8 + 628 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36144144 + 15824484 = 6012^2 + 3978^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79875 + ... + 80522.

Almost surely, 2^51968628 is an apocalyptic number.

It is an amenable number.

51968628 is an abundant number, since it is smaller than the sum of its proper divisors (83888478).

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

51968628 is a wasteful number, since it uses less digits than its factorization.

51968628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160413 (or 160402 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 51968628 is about 7208.9269659222. The cubic root of 51968628 is about 373.1760388251.

It can be divided in two parts, 5196 and 8628, that added together give a cube (13824 = 24³).

The spelling of 51968628 in words is "fifty-one million, nine hundred sixty-eight thousand, six hundred twenty-eight".