51361944 has 32 divisors (see below), whose sum is σ = 133989120. Its totient is φ = 16376096.

The previous prime is 51361907. The next prime is 51361993. The reversal of 51361944 is 44916315.

51361944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45972 + ... + 47075.

It is an arithmetic number, because the mean of its divisors is an integer number (4187160).

Almost surely, 2^51361944 is an apocalyptic number.

It is an amenable number.

51361944 is an abundant number, since it is smaller than the sum of its proper divisors (82627176).

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

51361944 is a wasteful number, since it uses less digits than its factorization.

51361944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93079 (or 93075 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 51361944 is about 7166.7247749582. The cubic root of 51361944 is about 371.7181933249.

The spelling of 51361944 in words is "fifty-one million, three hundred sixty-one thousand, nine hundred forty-four".