54243013515 has 8 divisors (see below), whose sum is σ = 86788821648. Its totient is φ = 28929607200.

The previous prime is 54243013507. The next prime is 54243013577. The reversal of 54243013515 is 51531034245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54243013515 - 2³ = 54243013507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808100436 + ... + 1808100465.

It is an arithmetic number, because the mean of its divisors is an integer number (10848602706).

Almost surely, 2^54243013515 is an apocalyptic number.

54243013515 is a deficient number, since it is larger than the sum of its proper divisors (32545808133).

54243013515 is a wasteful number, since it uses less digits than its factorization.

54243013515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616200909.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 54243013515 in words is "fifty-four billion, two hundred forty-three million, thirteen thousand, five hundred fifteen".