51964738 has 16 divisors (see below), whose sum is σ = 89578944. Its totient is φ = 22146480.

The previous prime is 51964729. The next prime is 51964771. The reversal of 51964738 is 83746915.

It is a junction number, because it is equal to n+sod(n) for n = 51964694 and 51964703.

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, 7720 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (5598684).

Almost surely, 2^51964738 is an apocalyptic number.

51964738 is a deficient number, since it is larger than the sum of its proper divisors (37614206).

51964738 is a wasteful number, since it uses less digits than its factorization.

51964738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20697.

The product of its digits is 181440, while the sum is 43.

The square root of 51964738 is about 7208.6571565029. The cubic root of 51964738 is about 373.1667274959.

The spelling of 51964738 in words is "fifty-one million, nine hundred sixty-four thousand, seven hundred thirty-eight".