54562261 has 4 divisors (see below), whose sum is σ = 58759372. Its totient is φ = 50365152.

The previous prime is 54562217. The next prime is 54562271. The reversal of 54562261 is 16226545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10923025 + 43639236 = 3305^2 + 6606^2 .

It is a cyclic number.

It is not a de Polignac number, because 54562261 - 2⁷ = 54562133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54562271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098536 + ... + 2098561.

It is an arithmetic number, because the mean of its divisors is an integer number (14689843).

Almost surely, 2^54562261 is an apocalyptic number.

It is an amenable number.

54562261 is a deficient number, since it is larger than the sum of its proper divisors (4197111).

54562261 is a wasteful number, since it uses less digits than its factorization.

54562261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197110.

The product of its digits is 14400, while the sum is 31.

The square root of 54562261 is about 7386.6271734805. The cubic root of 54562261 is about 379.2836481191.

The spelling of 54562261 in words is "fifty-four million, five hundred sixty-two thousand, two hundred sixty-one".