55102125515 has 4 divisors (see below), whose sum is σ = 66122550624. Its totient is φ = 44081700408.

The previous prime is 55102125493. The next prime is 55102125599. The reversal of 55102125515 is 51552120155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55102125515 - 2¹² = 55102121419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510212547 + ... + 5510212556.

It is an arithmetic number, because the mean of its divisors is an integer number (16530637656).

Almost surely, 2^55102125515 is an apocalyptic number.

55102125515 is a deficient number, since it is larger than the sum of its proper divisors (11020425109).

55102125515 is a wasteful number, since it uses less digits than its factorization.

55102125515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020425108.

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 55102125515 in words is "fifty-five billion, one hundred two million, one hundred twenty-five thousand, five hundred fifteen".