54987903 has 20 divisors (see below), whose sum is σ = 82363248. Its totient is φ = 36560160.

The previous prime is 54987899. The next prime is 54987937. The reversal of 54987903 is 30978945.

It is not a de Polignac number, because 54987903 - 2² = 54987899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54987943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41550 + ... + 42852.

Almost surely, 2^54987903 is an apocalyptic number.

54987903 is a deficient number, since it is larger than the sum of its proper divisors (27375345).

54987903 is a wasteful number, since it uses less digits than its factorization.

54987903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1827 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 54987903 is about 7415.3828626714. The cubic root of 54987903 is about 380.2673626282.

The spelling of 54987903 in words is "fifty-four million, nine hundred eighty-seven thousand, nine hundred three".