653225674 has 4 divisors (see below), whose sum is σ = 979838514. Its totient is φ = 326612836.

The previous prime is 653225669. The next prime is 653225723. The reversal of 653225674 is 476522356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 564395049 + 88830625 = 23757^2 + 9425^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163306417 + ... + 163306420.

Almost surely, 2^653225674 is an apocalyptic number.

653225674 is a deficient number, since it is larger than the sum of its proper divisors (326612840).

653225674 is a wasteful number, since it uses less digits than its factorization.

653225674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326612839.

The product of its digits is 302400, while the sum is 40.

The square root of 653225674 is about 25558.2799499497. The cubic root of 653225674 is about 867.6696671410.

The spelling of 653225674 in words is "six hundred fifty-three million, two hundred twenty-five thousand, six hundred seventy-four".