653574242 has 4 divisors (see below), whose sum is σ = 980361366. Its totient is φ = 326787120.

The previous prime is 653574227. The next prime is 653574277. The reversal of 653574242 is 242475356.

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., 602751601 + 50822641 = 24551^2 + 7129^2 .

It is a junction number, because it is equal to n+sod(n) for n = 653574196 and 653574205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163393559 + ... + 163393562.

Almost surely, 2^653574242 is an apocalyptic number.

653574242 is a deficient number, since it is larger than the sum of its proper divisors (326787124).

653574242 is a wasteful number, since it uses less digits than its factorization.

653574242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326787123.

The product of its digits is 201600, while the sum is 38.

The square root of 653574242 is about 25565.0981222447. The cubic root of 653574242 is about 867.8239722115.

The spelling of 653574242 in words is "six hundred fifty-three million, five hundred seventy-four thousand, two hundred forty-two".