55534011515 has 4 divisors (see below), whose sum is σ = 66640813824. Its totient is φ = 44427209208.

The previous prime is 55534011499. The next prime is 55534011521. The reversal of 55534011515 is 51511043555.

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 55534011515 - 2⁴ = 55534011499 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, 5553401147 + ... + 5553401156.

It is an arithmetic number, because the mean of its divisors is an integer number (16660203456).

Almost surely, 2^55534011515 is an apocalyptic number.

55534011515 is a deficient number, since it is larger than the sum of its proper divisors (11106802309).

55534011515 is a wasteful number, since it uses less digits than its factorization.

55534011515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106802308.

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 55534011515 in words is "fifty-five billion, five hundred thirty-four million, eleven thousand, five hundred fifteen".