55919351 has 2 divisors, whose sum is σ = 55919352. Its totient is φ = 55919350.

The previous prime is 55919333. The next prime is 55919359. The reversal of 55919351 is 15391955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55919351 - 2⁶ = 55919287 is a prime.

It is a super-2 number, since 2×55919351² = 6253947632522402, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55919359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27959675 + 27959676.

It is an arithmetic number, because the mean of its divisors is an integer number (27959676).

Almost surely, 2^55919351 is an apocalyptic number.

55919351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55919351 is an equidigital number, since it uses as much as digits as its factorization.

55919351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30375, while the sum is 38.

The square root of 55919351 is about 7477.9242440667. The cubic root of 55919351 is about 382.4024864271.

The spelling of 55919351 in words is "fifty-five million, nine hundred nineteen thousand, three hundred fifty-one".