55061521715 has 16 divisors (see below), whose sum is σ = 70550016768. Its totient is φ = 41154169056.

The previous prime is 55061521709. The next prime is 55061521771. The reversal of 55061521715 is 51712516055.

It is a happy number.

55061521715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55061521715 - 2⁶ = 55061521651 is a prime.

It is a Duffinian 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, 5562449 + ... + 5572338.

It is an arithmetic number, because the mean of its divisors is an integer number (4409376048).

Almost surely, 2^55061521715 is an apocalyptic number.

55061521715 is a deficient number, since it is larger than the sum of its proper divisors (15488495053).

55061521715 is a wasteful number, since it uses less digits than its factorization.

55061521715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11134858.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 55061521715 in words is "fifty-five billion, sixty-one million, five hundred twenty-one thousand, seven hundred fifteen".