653740625 has 24 divisors (see below), whose sum is σ = 834696576. Its totient is φ = 511750000.

The previous prime is 653740603. The next prime is 653740631. The reversal of 653740625 is 526047356.

It is a sliding number, since 653740625 = 244140625 + 409600000 and 1/244140625 + 1/409600000 = 0.00000000653740625.

It is not a de Polignac number, because 653740625 - 2¹² = 653736529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144650 + ... + 149100.

It is an arithmetic number, because the mean of its divisors is an integer number (34779024).

Almost surely, 2^653740625 is an apocalyptic number.

It is an amenable number.

653740625 is a deficient number, since it is larger than the sum of its proper divisors (180955951).

653740625 is an frugal number, since it uses more digits than its factorization.

653740625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523 (or 4503 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 653740625 is about 25568.3520196355. The cubic root of 653740625 is about 867.8976077659.

The spelling of 653740625 in words is "six hundred fifty-three million, seven hundred forty thousand, six hundred twenty-five".