54428890 has 12 divisors (see below), whose sum is σ = 98014014. Its totient is φ = 21762224.

The previous prime is 54428861. The next prime is 54428893. The reversal of 54428890 is 9882445.

It can be written as a sum of positive squares in 3 ways, for example, as 35844169 + 18584721 = 5987^2 + 4311^2 .

It is not an unprimeable number, because it can be changed into a prime (54428893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22164 + ... + 24496.

Almost surely, 2^54428890 is an apocalyptic number.

54428890 is a deficient number, since it is larger than the sum of its proper divisors (43585124).

54428890 is an frugal number, since it uses more digits than its factorization.

54428890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 54428890 is about 7377.5937811728. The cubic root of 54428890 is about 378.9743579536.

Multiplying 54428890 by its sum of digits (40), we get a square (2177155600 = 46660²).

Multiplying 54428890 by its product of nonzero digits (92160), we get a square (5016166502400 = 2239680²).

The spelling of 54428890 in words is "fifty-four million, four hundred twenty-eight thousand, eight hundred ninety".