54647015281 has 4 divisors (see below), whose sum is σ = 57523174000. Its totient is φ = 51770856564.

The previous prime is 54647015261. The next prime is 54647015317. The reversal of 54647015281 is 18251074645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54647015281 - 2⁷ = 54647015153 is a prime.

It is a super-2 number, since 2×54647015281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54647015201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438079331 + ... + 1438079368.

It is an arithmetic number, because the mean of its divisors is an integer number (14380793500).

Almost surely, 2^54647015281 is an apocalyptic number.

It is an amenable number.

54647015281 is a deficient number, since it is larger than the sum of its proper divisors (2876158719).

54647015281 is a wasteful number, since it uses less digits than its factorization.

54647015281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876158718.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 54647015281 in words is "fifty-four billion, six hundred forty-seven million, fifteen thousand, two hundred eighty-one".