55996751 has 2 divisors, whose sum is σ = 55996752. Its totient is φ = 55996750.

The previous prime is 55996747. The next prime is 55996763. The reversal of 55996751 is 15769955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55996751 - 2² = 55996747 is a prime.

It is a super-2 number, since 2×55996751² = 6271272245112002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55996696 and 55996705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55996711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27998375 + 27998376.

It is an arithmetic number, because the mean of its divisors is an integer number (27998376).

Almost surely, 2^55996751 is an apocalyptic number.

55996751 is a deficient number, since it is larger than the sum of its proper divisors (1).

55996751 is an equidigital number, since it uses as much as digits as its factorization.

55996751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 425250, while the sum is 47.

The square root of 55996751 is about 7483.0976874554. The cubic root of 55996751 is about 382.5788374668.

The spelling of 55996751 in words is "fifty-five million, nine hundred ninety-six thousand, seven hundred fifty-one".