54772515 has 48 divisors (see below), whose sum is σ = 111174336. Its totient is φ = 24422400.

The previous prime is 54772513. The next prime is 54772537. The reversal of 54772515 is 51527745.

It is not a de Polignac number, because 54772515 - 2¹ = 54772513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54772515.

It is not an unprimeable number, because it can be changed into a prime (54772513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10795 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (2316132).

Almost surely, 2^54772515 is an apocalyptic number.

54772515 is an abundant number, since it is smaller than the sum of its proper divisors (56401821).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54772515 is a wasteful number, since it uses less digits than its factorization.

54772515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4297 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 54772515 is about 7400.8455597992. The cubic root of 54772515 is about 379.7702096399.

The spelling of 54772515 in words is "fifty-four million, seven hundred seventy-two thousand, five hundred fifteen".