54687609 has 8 divisors (see below), whose sum is σ = 81018720. Its totient is φ = 36458388.

The previous prime is 54687599. The next prime is 54687709. The reversal of 54687609 is 90678645.

It is not a de Polignac number, because 54687609 - 2²⁴ = 37910393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54687109) 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, 1012707 + ... + 1012760.

It is an arithmetic number, because the mean of its divisors is an integer number (10127340).

Almost surely, 2^54687609 is an apocalyptic number.

It is an amenable number.

54687609 is a deficient number, since it is larger than the sum of its proper divisors (26331111).

54687609 is a wasteful number, since it uses less digits than its factorization.

54687609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025476 (or 2025470 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 54687609 is about 7395.1070986159. The cubic root of 54687609 is about 379.5738736658.

The spelling of 54687609 in words is "fifty-four million, six hundred eighty-seven thousand, six hundred nine".