54789090 has 32 divisors (see below), whose sum is σ = 135737856. Its totient is φ = 14138880.

The previous prime is 54789089. The next prime is 54789101. The reversal of 54789090 is 9098745.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28527 + ... + 30386.

It is an arithmetic number, because the mean of its divisors is an integer number (4241808).

Almost surely, 2^54789090 is an apocalyptic number.

54789090 is an abundant number, since it is smaller than the sum of its proper divisors (80948766).

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

54789090 is a wasteful number, since it uses less digits than its factorization.

54789090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58954.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 54789090 is about 7401.9652795727. The cubic root of 54789090 is about 379.8085138659.

The spelling of 54789090 in words is "fifty-four million, seven hundred eighty-nine thousand, ninety".