54513115356615 has 16 divisors (see below), whose sum is σ = 87463939968000. Its totient is φ = 28992676391072.

The previous prime is 54513115356613. The next prime is 54513115356691. The reversal of 54513115356615 is 51665351131545.

It is a cyclic number.

It is not a de Polignac number, because 54513115356615 - 2¹ = 54513115356613 is a prime.

It is a super-2 number, since 2×54513115356615² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54513115356611) 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, 5061565215 + ... + 5061575984.

It is an arithmetic number, because the mean of its divisors is an integer number (5466496248000).

Almost surely, 2^{54513115356615} is an apocalyptic number.

54513115356615 is a deficient number, since it is larger than the sum of its proper divisors (32950824611385).

54513115356615 is a wasteful number, since it uses less digits than its factorization.

54513115356615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123141566.

The product of its digits is 4050000, while the sum is 51.

The spelling of 54513115356615 in words is "fifty-four trillion, five hundred thirteen billion, one hundred fifteen million, three hundred fifty-six thousand, six hundred fifteen".