54661538 has 8 divisors (see below), whose sum is σ = 82744860. Its totient is φ = 27079920.

The previous prime is 54661531. The next prime is 54661571. The reversal of 54661538 is 83516645.

It can be written as a sum of positive squares in 2 ways, for example, as 53479969 + 1181569 = 7313^2 + 1087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (54661531) 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, 125153 + ... + 125588.

Almost surely, 2^54661538 is an apocalyptic number.

54661538 is a deficient number, since it is larger than the sum of its proper divisors (28083322).

54661538 is a wasteful number, since it uses less digits than its factorization.

54661538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250852.

The product of its digits is 86400, while the sum is 38.

The square root of 54661538 is about 7393.3441689130. The cubic root of 54661538 is about 379.5135465119.

The spelling of 54661538 in words is "fifty-four million, six hundred sixty-one thousand, five hundred thirty-eight".