54990612 has 36 divisors (see below), whose sum is σ = 143800020. Its totient is φ = 17697792.

The previous prime is 54990601. The next prime is 54990613. The reversal of 54990612 is 21609945.

It can be written as a sum of positive squares in 2 ways, for example, as 25765776 + 29224836 = 5076^2 + 5406^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54990613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25293 + ... + 27380.

It is an arithmetic number, because the mean of its divisors is an integer number (3994445).

Almost surely, 2^54990612 is an apocalyptic number.

It is an amenable number.

54990612 is an abundant number, since it is smaller than the sum of its proper divisors (88809408).

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

54990612 is a wasteful number, since it uses less digits than its factorization.

54990612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52712 (or 52707 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 54990612 is about 7415.5655212533. The cubic root of 54990612 is about 380.2736071978.

The spelling of 54990612 in words is "fifty-four million, nine hundred ninety thousand, six hundred twelve".