54687725 has 12 divisors (see below), whose sum is σ = 71802324. Its totient is φ = 41176320.

The previous prime is 54687713. The next prime is 54687761. The reversal of 54687725 is 52778645.

It can be written as a sum of positive squares in 6 ways, for example, as 1965604 + 52722121 = 1402^2 + 7261^2 .

It is not a de Polignac number, because 54687725 - 2⁴ = 54687709 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63914 + ... + 64763.

It is an arithmetic number, because the mean of its divisors is an integer number (5983527).

Almost surely, 2^54687725 is an apocalyptic number.

It is an amenable number.

54687725 is a deficient number, since it is larger than the sum of its proper divisors (17114599).

54687725 is a wasteful number, since it uses less digits than its factorization.

54687725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128704 (or 128699 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 54687725 is about 7395.1149416355. The cubic root of 54687725 is about 379.5741420419.

The spelling of 54687725 in words is "fifty-four million, six hundred eighty-seven thousand, seven hundred twenty-five".