54505290 has 64 divisors (see below), whose sum is σ = 150200064. Its totient is φ = 12400128.

The previous prime is 54505279. The next prime is 54505303. The reversal of 54505290 is 9250545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57702 + ... + 58638.

It is an arithmetic number, because the mean of its divisors is an integer number (2346876).

Almost surely, 2^54505290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54505290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75100032).

54505290 is an abundant number, since it is smaller than the sum of its proper divisors (95694774).

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

54505290 is a wasteful number, since it uses less digits than its factorization.

54505290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 54505290 is about 7382.7698054321. The cubic root of 54505290 is about 379.1515929013.

The spelling of 54505290 in words is "fifty-four million, five hundred five thousand, two hundred ninety".