54623891 has 16 divisors (see below), whose sum is σ = 64800768. Its totient is φ = 45057600.

The previous prime is 54623831. The next prime is 54623897. The reversal of 54623891 is 19832645.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-54623891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54623897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45191 + ... + 46383.

It is an arithmetic number, because the mean of its divisors is an integer number (4050048).

Almost surely, 2^54623891 is an apocalyptic number.

54623891 is a deficient number, since it is larger than the sum of its proper divisors (10176877).

54623891 is a wasteful number, since it uses less digits than its factorization.

54623891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442.

The product of its digits is 51840, while the sum is 38.

The square root of 54623891 is about 7390.7977241973. The cubic root of 54623891 is about 379.4263991419.

The spelling of 54623891 in words is "fifty-four million, six hundred twenty-three thousand, eight hundred ninety-one".