652974251 has 4 divisors (see below), whose sum is σ = 656980392. Its totient is φ = 648968112.

The previous prime is 652974247. The next prime is 652974253. The reversal of 652974251 is 152479256.

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

It is a cyclic number.

It is not a de Polignac number, because 652974251 - 2² = 652974247 is a prime.

It is a super-2 number, since 2×652974251² = 852750744938022002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 652974199 and 652974208.

It is not an unprimeable number, because it can be changed into a prime (652974253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002826 + ... + 2003151.

It is an arithmetic number, because the mean of its divisors is an integer number (164245098).

Almost surely, 2^652974251 is an apocalyptic number.

652974251 is a deficient number, since it is larger than the sum of its proper divisors (4006141).

652974251 is a wasteful number, since it uses less digits than its factorization.

652974251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006140.

The product of its digits is 151200, while the sum is 41.

The square root of 652974251 is about 25553.3608552769. The cubic root of 652974251 is about 867.5583324145.

The spelling of 652974251 in words is "six hundred fifty-two million, nine hundred seventy-four thousand, two hundred fifty-one".