55756751 has 2 divisors, whose sum is σ = 55756752. Its totient is φ = 55756750.

The previous prime is 55756739. The next prime is 55756759. The reversal of 55756751 is 15765755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55756751 - 2¹⁴ = 55740367 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 55756699 and 55756708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55756759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27878375 + 27878376.

It is an arithmetic number, because the mean of its divisors is an integer number (27878376).

Almost surely, 2^55756751 is an apocalyptic number.

55756751 is a deficient number, since it is larger than the sum of its proper divisors (1).

55756751 is an equidigital number, since it uses as much as digits as its factorization.

55756751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183750, while the sum is 41.

The square root of 55756751 is about 7467.0443282466. The cubic root of 55756751 is about 382.0314818311.

The spelling of 55756751 in words is "fifty-five million, seven hundred fifty-six thousand, seven hundred fifty-one".