54857513 has 4 divisors (see below), whose sum is σ = 54879888. Its totient is φ = 54835140.

The previous prime is 54857489. The next prime is 54857533. The reversal of 54857513 is 31575845.

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 54857513 - 2⁶ = 54857449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54857533) 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, 6983 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (13719972).

Almost surely, 2^54857513 is an apocalyptic number.

It is an amenable number.

54857513 is a deficient number, since it is larger than the sum of its proper divisors (22375).

54857513 is a wasteful number, since it uses less digits than its factorization.

54857513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22374.

The product of its digits is 84000, while the sum is 38.

The square root of 54857513 is about 7406.5857856370. The cubic root of 54857513 is about 379.9665552283.

The spelling of 54857513 in words is "fifty-four million, eight hundred fifty-seven thousand, five hundred thirteen".