54661725 has 36 divisors (see below), whose sum is σ = 99118656. Its totient is φ = 28791840.

The previous prime is 54661721. The next prime is 54661751. The reversal of 54661725 is 52716645.

It is a happy number.

It is not a de Polignac number, because 54661725 - 2² = 54661721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54661725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54661721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17212 + ... + 20138.

It is an arithmetic number, because the mean of its divisors is an integer number (2753296).

Almost surely, 2^54661725 is an apocalyptic number.

It is an amenable number.

54661725 is a deficient number, since it is larger than the sum of its proper divisors (44456931).

54661725 is a wasteful number, since it uses less digits than its factorization.

54661725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026 (or 3018 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 54661725 is about 7393.3568154121. The cubic root of 54661725 is about 379.5139792900.

The spelling of 54661725 in words is "fifty-four million, six hundred sixty-one thousand, seven hundred twenty-five".