54431512016015 has 16 divisors (see below), whose sum is σ = 66400810805280. Its totient is φ = 42823474657920.

The previous prime is 54431512015997. The next prime is 54431512016033. The reversal of 54431512016015 is 51061021513445.

It is an interprime number because it is at equal distance from previous prime (54431512015997) and next prime (54431512016033).

It is not a de Polignac number, because 54431512016015 - 2¹⁰ = 54431512014991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54431512016015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14753705 + ... + 18070274.

It is an arithmetic number, because the mean of its divisors is an integer number (4150050675330).

Almost surely, 2^{54431512016015} is an apocalyptic number.

54431512016015 is a deficient number, since it is larger than the sum of its proper divisors (11969298789265).

54431512016015 is a wasteful number, since it uses less digits than its factorization.

54431512016015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32829482.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 54431512016015 in words is "fifty-four trillion, four hundred thirty-one billion, five hundred twelve million, sixteen thousand, fifteen".