54149636 has 24 divisors (see below), whose sum is σ = 99658944. Its totient is φ = 25694240.

The previous prime is 54149633. The next prime is 54149651. The reversal of 54149636 is 63694145.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54149636.

It is not an unprimeable number, because it can be changed into a prime (54149633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9806 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (4152456).

Almost surely, 2^54149636 is an apocalyptic number.

It is an amenable number.

54149636 is a deficient number, since it is larger than the sum of its proper divisors (45509308).

54149636 is a wasteful number, since it uses less digits than its factorization.

54149636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651 (or 4649 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 54149636 is about 7358.6436250168. The cubic root of 54149636 is about 378.3251217704.

The spelling of 54149636 in words is "fifty-four million, one hundred forty-nine thousand, six hundred thirty-six".