654705125 has 8 divisors (see below), whose sum is σ = 817072152. Its totient is φ = 523764000.

The previous prime is 654705083. The next prime is 654705127. The reversal of 654705125 is 521507456.

It can be written as a sum of positive squares in 4 ways, for example, as 171452836 + 483252289 = 13094^2 + 21983^2 .

It is not a de Polignac number, because 654705125 - 2⁶ = 654705061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654705127) 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, 2618696 + ... + 2618945.

It is an arithmetic number, because the mean of its divisors is an integer number (102134019).

Almost surely, 2^654705125 is an apocalyptic number.

It is an amenable number.

654705125 is a deficient number, since it is larger than the sum of its proper divisors (162367027).

654705125 is an equidigital number, since it uses as much as digits as its factorization.

654705125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237656 (or 5237646 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 654705125 is about 25587.2062757934. The cubic root of 654705125 is about 868.3242172808.

The spelling of 654705125 in words is "six hundred fifty-four million, seven hundred five thousand, one hundred twenty-five".