54591490 has 16 divisors (see below), whose sum is σ = 98350200. Its totient is φ = 21817600.

The previous prime is 54591479. The next prime is 54591497. The reversal of 54591490 is 9419545.

It can be written as a sum of positive squares in 4 ways, for example, as 49999041 + 4592449 = 7071^2 + 2143^2 .

It is not an unprimeable number, because it can be changed into a prime (54591497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18090 + ... + 20890.

Almost surely, 2^54591490 is an apocalyptic number.

54591490 is a deficient number, since it is larger than the sum of its proper divisors (43758710).

54591490 is a wasteful number, since it uses less digits than its factorization.

54591490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 54591490 is about 7388.6054164504. The cubic root of 54591490 is about 379.3513634381.

The spelling of 54591490 in words is "fifty-four million, five hundred ninety-one thousand, four hundred ninety".