55582519 has 2 divisors, whose sum is σ = 55582520. Its totient is φ = 55582518.

The previous prime is 55582493. The next prime is 55582523. The reversal of 55582519 is 91528555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55582519 - 2¹¹ = 55580471 is a prime.

It is a super-2 number, since 2×55582519² = 6178832836770722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55582819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27791259 + 27791260.

It is an arithmetic number, because the mean of its divisors is an integer number (27791260).

Almost surely, 2^55582519 is an apocalyptic number.

55582519 is a deficient number, since it is larger than the sum of its proper divisors (1).

55582519 is an equidigital number, since it uses as much as digits as its factorization.

55582519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90000, while the sum is 40.

The square root of 55582519 is about 7455.3684684260. The cubic root of 55582519 is about 381.6331350780.

The spelling of 55582519 in words is "fifty-five million, five hundred eighty-two thousand, five hundred nineteen".