55786499 has 2 divisors, whose sum is σ = 55786500. Its totient is φ = 55786498.

The previous prime is 55786487. The next prime is 55786519. The reversal of 55786499 is 99468755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55786499 - 2⁸ = 55786243 is a prime.

It is a super-2 number, since 2×55786499² = 6224266941354002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55786499.

It is not a weakly prime, because it can be changed into another prime (55786429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27893249 + 27893250.

It is an arithmetic number, because the mean of its divisors is an integer number (27893250).

Almost surely, 2^55786499 is an apocalyptic number.

55786499 is a deficient number, since it is larger than the sum of its proper divisors (1).

55786499 is an equidigital number, since it uses as much as digits as its factorization.

55786499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 53.

The square root of 55786499 is about 7469.0360154440. The cubic root of 55786499 is about 382.0994117336.

The spelling of 55786499 in words is "fifty-five million, seven hundred eighty-six thousand, four hundred ninety-nine".