54531997715 has 8 divisors (see below), whose sum is σ = 70472120208. Its totient is φ = 40269782880.

The previous prime is 54531997693. The next prime is 54531997727. The reversal of 54531997715 is 51779913545.

It is a happy number.

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

It is not a de Polignac number, because 54531997715 - 2¹² = 54531993619 is a prime.

It is a Duffinian number.

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, 419476841 + ... + 419476970.

It is an arithmetic number, because the mean of its divisors is an integer number (8809015026).

Almost surely, 2^54531997715 is an apocalyptic number.

54531997715 is a deficient number, since it is larger than the sum of its proper divisors (15940122493).

54531997715 is a wasteful number, since it uses less digits than its factorization.

54531997715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838953829.

The product of its digits is 5953500, while the sum is 56.

The spelling of 54531997715 in words is "fifty-four billion, five hundred thirty-one million, nine hundred ninety-seven thousand, seven hundred fifteen".