55135499 has 2 divisors, whose sum is σ = 55135500. Its totient is φ = 55135498.

The previous prime is 55135469. The next prime is 55135517. The reversal of 55135499 is 99453155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55135499 - 2⁸ = 55135243 is a prime.

It is a Chen prime.

It is equal to p_3289856 and since 55135499 and 3289856 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55135469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27567749 + 27567750.

It is an arithmetic number, because the mean of its divisors is an integer number (27567750).

Almost surely, 2^55135499 is an apocalyptic number.

55135499 is a deficient number, since it is larger than the sum of its proper divisors (1).

55135499 is an equidigital number, since it uses as much as digits as its factorization.

55135499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 41.

The square root of 55135499 is about 7425.3282082343. The cubic root of 55135499 is about 380.6072907242.

The spelling of 55135499 in words is "fifty-five million, one hundred thirty-five thousand, four hundred ninety-nine".