54320132515 has 24 divisors (see below), whose sum is σ = 71670231360. Its totient is φ = 39493681920.

The previous prime is 54320132507. The next prime is 54320132543. The reversal of 54320132515 is 51523102345.

It is not a de Polignac number, because 54320132515 - 2³ = 54320132507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2341302 + ... + 2364388.

It is an arithmetic number, because the mean of its divisors is an integer number (2986259640).

Almost surely, 2^54320132515 is an apocalyptic number.

54320132515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54320132515 is a deficient number, since it is larger than the sum of its proper divisors (17350098845).

54320132515 is a wasteful number, since it uses less digits than its factorization.

54320132515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27003 (or 26992 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 54320132515 in words is "fifty-four billion, three hundred twenty million, one hundred thirty-two thousand, five hundred fifteen".