55002553 has 2 divisors, whose sum is σ = 55002554. Its totient is φ = 55002552.

The previous prime is 55002539. The next prime is 55002581. The reversal of 55002553 is 35520055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53978409 + 1024144 = 7347^2 + 1012^2 .

It is a cyclic number.

It is not a de Polignac number, because 55002553 - 2⁹ = 55002041 is a prime.

It is not a weakly prime, because it can be changed into another prime (55002503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27501276 + 27501277.

It is an arithmetic number, because the mean of its divisors is an integer number (27501277).

Almost surely, 2^55002553 is an apocalyptic number.

It is an amenable number.

55002553 is a deficient number, since it is larger than the sum of its proper divisors (1).

55002553 is an equidigital number, since it uses as much as digits as its factorization.

55002553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 55002553 is about 7416.3706083232. The cubic root of 55002553 is about 380.3011301897.

It can be divided in two parts, 55002 and 553, that added together give a palindrome (55555).

The spelling of 55002553 in words is "fifty-five million, two thousand, five hundred fifty-three".