54431490 has 16 divisors (see below), whose sum is σ = 130635648. Its totient is φ = 14515056.

The previous prime is 54431473. The next prime is 54431497. The reversal of 54431490 is 9413445.

54431490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1814383 = 54431490 / (5 + 4 + 4 + 3 + 1 + 4 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (54431497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907162 + ... + 907221.

It is an arithmetic number, because the mean of its divisors is an integer number (8164728).

Almost surely, 2^54431490 is an apocalyptic number.

54431490 is an abundant number, since it is smaller than the sum of its proper divisors (76204158).

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

54431490 is a wasteful number, since it uses less digits than its factorization.

54431490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814393.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 54431490 is about 7377.7699882824. The cubic root of 54431490 is about 378.9803922345.

The spelling of 54431490 in words is "fifty-four million, four hundred thirty-one thousand, four hundred ninety".