54515145153021 has 128 divisors (see below), whose sum is σ = 86184250048512. Its totient is φ = 30003063552000.

The previous prime is 54515145152999. The next prime is 54515145153023. The reversal of 54515145153021 is 12035154151545.

It is not a de Polignac number, because 54515145153021 - 2¹⁴ = 54515145136637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54515145153023) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31676434441 + ... + 31676436161.

It is an arithmetic number, because the mean of its divisors is an integer number (673314453504).

Almost surely, 2^{54515145153021} is an apocalyptic number.

It is an amenable number.

54515145153021 is a deficient number, since it is larger than the sum of its proper divisors (31669104895491).

54515145153021 is a wasteful number, since it uses less digits than its factorization.

54515145153021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 54515145153021 in words is "fifty-four trillion, five hundred fifteen billion, one hundred forty-five million, one hundred fifty-three thousand, twenty-one".