652994497 has 4 divisors (see below), whose sum is σ = 691405956. Its totient is φ = 614583040.

The previous prime is 652994491. The next prime is 652994543. The reversal of 652994497 is 794499256.

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

It can be written as a sum of positive squares in 2 ways, for example, as 607080321 + 45914176 = 24639^2 + 6776^2 .

It is a cyclic number.

It is not a de Polignac number, because 652994497 - 2⁷ = 652994369 is a prime.

It is a super-2 number, since 2×652994497² = 852803626224566018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652994491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19205704 + ... + 19205737.

It is an arithmetic number, because the mean of its divisors is an integer number (172851489).

Almost surely, 2^652994497 is an apocalyptic number.

It is an amenable number.

652994497 is a deficient number, since it is larger than the sum of its proper divisors (38411459).

652994497 is a wasteful number, since it uses less digits than its factorization.

652994497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38411458.

The product of its digits is 4898880, while the sum is 55.

The square root of 652994497 is about 25553.7570036189. The cubic root of 652994497 is about 867.5672987734.

It can be divided in two parts, 65299 and 4497, that added together give a palindrome (69796).

The spelling of 652994497 in words is "six hundred fifty-two million, nine hundred ninety-four thousand, four hundred ninety-seven".