54680513 has 4 divisors (see below), whose sum is σ = 54785988. Its totient is φ = 54575040.

The previous prime is 54680489. The next prime is 54680519. The reversal of 54680513 is 31508645.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13630864 + 41049649 = 3692^2 + 6407^2 .

It is a cyclic number.

It is not a de Polignac number, because 54680513 - 2⁸ = 54680257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54680513.

It is not an unprimeable number, because it can be changed into a prime (54680519) 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, 51956 + ... + 52997.

It is an arithmetic number, because the mean of its divisors is an integer number (13696497).

Almost surely, 2^54680513 is an apocalyptic number.

It is an amenable number.

54680513 is a deficient number, since it is larger than the sum of its proper divisors (105475).

54680513 is a wasteful number, since it uses less digits than its factorization.

54680513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105474.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 54680513 is about 7394.6273063624. The cubic root of 54680513 is about 379.5574557315.

The spelling of 54680513 in words is "fifty-four million, six hundred eighty thousand, five hundred thirteen".