55002555 has 12 divisors (see below), whose sum is σ = 95337840. Its totient is φ = 29334672.

The previous prime is 55002553. The next prime is 55002581. The reversal of 55002555 is 55520055.

It is a happy number.

It is not a de Polignac number, because 55002555 - 2¹ = 55002553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55002553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611095 + ... + 611184.

It is an arithmetic number, because the mean of its divisors is an integer number (7944820).

Almost surely, 2^55002555 is an apocalyptic number.

55002555 is a deficient number, since it is larger than the sum of its proper divisors (40335285).

55002555 is a wasteful number, since it uses less digits than its factorization.

55002555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222290 (or 1222287 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 55002555 is about 7416.3707431600. The cubic root of 55002555 is about 380.3011347992.

The spelling of 55002555 in words is "fifty-five million, two thousand, five hundred fifty-five".