51996957 has 8 divisors (see below), whose sum is σ = 69362784. Its totient is φ = 34647888.

The previous prime is 51996943. The next prime is 51997007. The reversal of 51996957 is 75969915.

It is a happy number.

51996957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51996957 - 2⁸ = 51996701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51996907) by changing a digit.

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, 8878 + ... + 13520.

It is an arithmetic number, because the mean of its divisors is an integer number (8670348).

Almost surely, 2^51996957 is an apocalyptic number.

It is an amenable number.

51996957 is a deficient number, since it is larger than the sum of its proper divisors (17365827).

51996957 is a wasteful number, since it uses less digits than its factorization.

51996957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8379.

The product of its digits is 765450, while the sum is 51.

The square root of 51996957 is about 7210.8915537539. The cubic root of 51996957 is about 373.2438347503.

The spelling of 51996957 in words is "fifty-one million, nine hundred ninety-six thousand, nine hundred fifty-seven".