654525605 has 32 divisors (see below), whose sum is σ = 833462784. Its totient is φ = 492464896.

The previous prime is 654525601. The next prime is 654525611. The reversal of 654525605 is 506525456.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 654525605 - 2² = 654525601 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 (654525601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3322367 + ... + 3322563.

It is an arithmetic number, because the mean of its divisors is an integer number (26045712).

Almost surely, 2^654525605 is an apocalyptic number.

It is an amenable number.

654525605 is a deficient number, since it is larger than the sum of its proper divisors (178937179).

654525605 is a wasteful number, since it uses less digits than its factorization.

654525605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 654525605 is about 25583.6980321454. The cubic root of 654525605 is about 868.2448452565.

The spelling of 654525605 in words is "six hundred fifty-four million, five hundred twenty-five thousand, six hundred five".