54478457 has 4 divisors (see below), whose sum is σ = 59431056. Its totient is φ = 49525860.

The previous prime is 54478441. The next prime is 54478469. The reversal of 54478457 is 75487445.

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 54478457 - 2⁴ = 54478441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54478427) 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, 2476283 + ... + 2476304.

It is an arithmetic number, because the mean of its divisors is an integer number (14857764).

Almost surely, 2^54478457 is an apocalyptic number.

It is an amenable number.

54478457 is a deficient number, since it is larger than the sum of its proper divisors (4952599).

54478457 is a wasteful number, since it uses less digits than its factorization.

54478457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952598.

The product of its digits is 627200, while the sum is 44.

The square root of 54478457 is about 7380.9523098310. The cubic root of 54478457 is about 379.0893638059.

The spelling of 54478457 in words is "fifty-four million, four hundred seventy-eight thousand, four hundred fifty-seven".