55002539 has 2 divisors, whose sum is σ = 55002540. Its totient is φ = 55002538.

The previous prime is 55002533. The next prime is 55002553. The reversal of 55002539 is 93520055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55002539 is a prime.

It is equal to p_3282329 and since 55002539 and 3282329 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 (55002533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27501269 + 27501270.

It is an arithmetic number, because the mean of its divisors is an integer number (27501270).

Almost surely, 2^55002539 is an apocalyptic number.

55002539 is a deficient number, since it is larger than the sum of its proper divisors (1).

55002539 is an equidigital number, since it uses as much as digits as its factorization.

55002539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 55002539 is about 7416.3696644652. The cubic root of 55002539 is about 380.3010979232.

The spelling of 55002539 in words is "fifty-five million, two thousand, five hundred thirty-nine".