54257407 has 4 divisors (see below), whose sum is σ = 57113080. Its totient is φ = 51401736.

The previous prime is 54257389. The next prime is 54257459. The reversal of 54257407 is 70475245.

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

It is a cyclic number.

It is not a de Polignac number, because 54257407 - 2²³ = 45868799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54257507) 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, 1427808 + ... + 1427845.

It is an arithmetic number, because the mean of its divisors is an integer number (14278270).

Almost surely, 2^54257407 is an apocalyptic number.

54257407 is a deficient number, since it is larger than the sum of its proper divisors (2855673).

54257407 is a wasteful number, since it uses less digits than its factorization.

54257407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855672.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 54257407 is about 7365.9627340898. The cubic root of 54257407 is about 378.5759419083.

The spelling of 54257407 in words is "fifty-four million, two hundred fifty-seven thousand, four hundred seven".