55957351 has 2 divisors, whose sum is σ = 55957352. Its totient is φ = 55957350.

The previous prime is 55957303. The next prime is 55957373. The reversal of 55957351 is 15375955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55957351 - 2²³ = 47568743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55957051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27978675 + 27978676.

It is an arithmetic number, because the mean of its divisors is an integer number (27978676).

Almost surely, 2^55957351 is an apocalyptic number.

55957351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55957351 is an equidigital number, since it uses as much as digits as its factorization.

55957351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118125, while the sum is 40.

The square root of 55957351 is about 7480.4646246072. The cubic root of 55957351 is about 382.4890873615.

The spelling of 55957351 in words is "fifty-five million, nine hundred fifty-seven thousand, three hundred fifty-one".