54967815 has 96 divisors (see below), whose sum is σ = 118250496. Its totient is φ = 23950080.

The previous prime is 54967811. The next prime is 54967831. The reversal of 54967815 is 51876945.

It is not a de Polignac number, because 54967815 - 2² = 54967811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54967811) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 195475 + ... + 195755.

It is an arithmetic number, because the mean of its divisors is an integer number (1231776).

Almost surely, 2^54967815 is an apocalyptic number.

54967815 is an abundant number, since it is smaller than the sum of its proper divisors (63282681).

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

54967815 is a wasteful number, since it uses less digits than its factorization.

54967815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 319 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 54967815 is about 7414.0282572971. The cubic root of 54967815 is about 380.2210509805.

The spelling of 54967815 in words is "fifty-four million, nine hundred sixty-seven thousand, eight hundred fifteen".