54497890 has 16 divisors (see below), whose sum is σ = 103259520. Its totient is φ = 20651760.

The previous prime is 54497881. The next prime is 54497893. The reversal of 54497890 is 9879445.

It is a self number, because there is not a number n which added to its sum of digits gives 54497890.

It is not an unprimeable number, because it can be changed into a prime (54497893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143226 + ... + 143605.

It is an arithmetic number, because the mean of its divisors is an integer number (6453720).

Almost surely, 2^54497890 is an apocalyptic number.

54497890 is a deficient number, since it is larger than the sum of its proper divisors (48761630).

54497890 is a wasteful number, since it uses less digits than its factorization.

54497890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286857.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 54497890 is about 7382.2686215011. The cubic root of 54497890 is about 379.1344334123.

The spelling of 54497890 in words is "fifty-four million, four hundred ninety-seven thousand, eight hundred ninety".