55616077515 has 16 divisors (see below), whose sum is σ = 89015448096. Its totient is φ = 29652000000.

The previous prime is 55616077477. The next prime is 55616077519. The reversal of 55616077515 is 51577061655.

It is not a de Polignac number, because 55616077515 - 2¹⁴ = 55616061131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55616077519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572736 + ... + 662765.

It is an arithmetic number, because the mean of its divisors is an integer number (5563465506).

Almost surely, 2^55616077515 is an apocalyptic number.

55616077515 is a deficient number, since it is larger than the sum of its proper divisors (33399370581).

55616077515 is a wasteful number, since it uses less digits than its factorization.

55616077515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238510.

The product of its (nonzero) digits is 1102500, while the sum is 48.

The spelling of 55616077515 in words is "fifty-five billion, six hundred sixteen million, seventy-seven thousand, five hundred fifteen".