54538890 has 64 divisors (see below), whose sum is σ = 158402304. Its totient is φ = 11731968.

The previous prime is 54538849. The next prime is 54538901. The reversal of 54538890 is 9883545.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4069 + ... + 11208.

It is an arithmetic number, because the mean of its divisors is an integer number (2475036).

Almost surely, 2^54538890 is an apocalyptic number.

54538890 is an abundant number, since it is smaller than the sum of its proper divisors (103863414).

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

54538890 is a wasteful number, since it uses less digits than its factorization.

54538890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 54538890 is about 7385.0450235594. The cubic root of 54538890 is about 379.2294867268.

The spelling of 54538890 in words is "fifty-four million, five hundred thirty-eight thousand, eight hundred ninety".