55015222135 has 16 divisors (see below), whose sum is σ = 68638187520. Its totient is φ = 42285993120.

The previous prime is 55015222099. The next prime is 55015222211. The reversal of 55015222135 is 53122251055.

It is not a de Polignac number, because 55015222135 - 2²¹ = 55013124983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 55015222097 and 55015222106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255207 + ... + 1298296.

It is an arithmetic number, because the mean of its divisors is an integer number (4289886720).

Almost surely, 2^55015222135 is an apocalyptic number.

55015222135 is a deficient number, since it is larger than the sum of its proper divisors (13622965385).

55015222135 is a wasteful number, since it uses less digits than its factorization.

55015222135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553678.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 55015222135 in words is "fifty-five billion, fifteen million, two hundred twenty-two thousand, one hundred thirty-five".