54849915 has 24 divisors (see below), whose sum is σ = 95247360. Its totient is φ = 29199744.

The previous prime is 54849901. The next prime is 54849959. The reversal of 54849915 is 51994845.

54849915 is a `hidden beast` number, since 548 + 4 + 99 + 15 = 666.

It is not a de Polignac number, because 54849915 - 2⁷ = 54849787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42246 + ... + 43524.

It is an arithmetic number, because the mean of its divisors is an integer number (3968640).

Almost surely, 2^54849915 is an apocalyptic number.

54849915 is a deficient number, since it is larger than the sum of its proper divisors (40397445).

54849915 is a wasteful number, since it uses less digits than its factorization.

54849915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2240 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 54849915 is about 7406.0728459825. The cubic root of 54849915 is about 379.9490120877.

The spelling of 54849915 in words is "fifty-four million, eight hundred forty-nine thousand, nine hundred fifteen".