653997324425 has 6 divisors (see below), whose sum is σ = 810956682318. Its totient is φ = 523197859520.

The previous prime is 653997324419. The next prime is 653997324439. The reversal of 653997324425 is 524423799356.

It can be written as a sum of positive squares in 3 ways, for example, as 103914035449 + 550083288976 = 322357^2 + 741676^2 .

It is not a de Polignac number, because 653997324425 - 2³⁰ = 652923582601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13079946464 + ... + 13079946513.

It is an arithmetic number, because the mean of its divisors is an integer number (135159447053).

Almost surely, 2^653997324425 is an apocalyptic number.

It is an amenable number.

653997324425 is a deficient number, since it is larger than the sum of its proper divisors (156959357893).

653997324425 is a wasteful number, since it uses less digits than its factorization.

653997324425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26159892987 (or 26159892982 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 59.

The spelling of 653997324425 in words is "six hundred fifty-three billion, nine hundred ninety-seven million, three hundred twenty-four thousand, four hundred twenty-five".