54090261 has 10 divisors (see below), whose sum is σ = 80801622. Its totient is φ = 36060120.

The previous prime is 54090217. The next prime is 54090271. The reversal of 54090261 is 16209045.

54090261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 3538161 = 7110^2 + 1881^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54090261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54090271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 333810 + ... + 333971.

Almost surely, 2^54090261 is an apocalyptic number.

It is an amenable number.

54090261 is a deficient number, since it is larger than the sum of its proper divisors (26711361).

54090261 is an equidigital number, since it uses as much as digits as its factorization.

54090261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667793 (or 667784 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 54090261 is about 7354.6081472775. The cubic root of 54090261 is about 378.1867935438.

The spelling of 54090261 in words is "fifty-four million, ninety thousand, two hundred sixty-one".