54021456 has 30 divisors (see below), whose sum is σ = 151185450. Its totient is φ = 18007104.

The previous prime is 54021439. The next prime is 54021467. The reversal of 54021456 is 65412045.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 13571856 = 6360^2 + 3684^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187431 + ... + 187718.

It is an arithmetic number, because the mean of its divisors is an integer number (5039515).

Almost surely, 2^54021456 is an apocalyptic number.

It is an amenable number.

54021456 is an abundant number, since it is smaller than the sum of its proper divisors (97163994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54021456 is a wasteful number, since it uses less digits than its factorization.

54021456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375163 (or 375154 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 54021456 is about 7349.9289792487. The cubic root of 54021456 is about 378.0263692027.

The spelling of 54021456 in words is "fifty-four million, twenty-one thousand, four hundred fifty-six".