54213057 has 12 divisors (see below), whose sum is σ = 81208400. Its totient is φ = 36141876.

The previous prime is 54213041. The next prime is 54213059. The reversal of 54213057 is 75031245.

It is a happy number.

It is not a de Polignac number, because 54213057 - 2⁴ = 54213041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 54213057.

It is not an unprimeable number, because it can be changed into a prime (54213059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111307 + ... + 111792.

Almost surely, 2^54213057 is an apocalyptic number.

It is an amenable number.

54213057 is a deficient number, since it is larger than the sum of its proper divisors (26995343).

54213057 is an equidigital number, since it uses as much as digits as its factorization.

54213057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223114 (or 223102 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 54213057 is about 7362.9516499839. The cubic root of 54213057 is about 378.4727644762.

The spelling of 54213057 in words is "fifty-four million, two hundred thirteen thousand, fifty-seven".