55002515551 has 4 divisors (see below), whose sum is σ = 55003080832. Its totient is φ = 55001950272.

The previous prime is 55002515531. The next prime is 55002515569. The reversal of 55002515551 is 15551520055.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55002515551 - 2⁷ = 55002515423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55002515531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95295 + ... + 345088.

It is an arithmetic number, because the mean of its divisors is an integer number (13750770208).

Almost surely, 2^55002515551 is an apocalyptic number.

55002515551 is a deficient number, since it is larger than the sum of its proper divisors (565281).

55002515551 is a wasteful number, since it uses less digits than its factorization.

55002515551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565280.

The product of its (nonzero) digits is 31250, while the sum is 34.

The spelling of 55002515551 in words is "fifty-five billion, two million, five hundred fifteen thousand, five hundred fifty-one".