54457207 has 4 divisors (see below), whose sum is σ = 62236816. Its totient is φ = 46677600.

The previous prime is 54457199. The next prime is 54457223. The reversal of 54457207 is 70275445.

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 54457207 - 2³ = 54457199 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 (54457267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3889794 + ... + 3889807.

It is an arithmetic number, because the mean of its divisors is an integer number (15559204).

Almost surely, 2^54457207 is an apocalyptic number.

54457207 is a deficient number, since it is larger than the sum of its proper divisors (7779609).

54457207 is an equidigital number, since it uses as much as digits as its factorization.

54457207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779608.

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

The square root of 54457207 is about 7379.5126532854. The cubic root of 54457207 is about 379.0400678881.

The spelling of 54457207 in words is "fifty-four million, four hundred fifty-seven thousand, two hundred seven".