652254649 has 2 divisors, whose sum is σ = 652254650. Its totient is φ = 652254648.

The previous prime is 652254641. The next prime is 652254683. The reversal of 652254649 is 946452256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609744249 + 42510400 = 24693^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 652254649 - 2³ = 652254641 is a prime.

It is a super-2 number, since 2×652254649² = 850872254284226402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (652254641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326127324 + 326127325.

It is an arithmetic number, because the mean of its divisors is an integer number (326127325).

Almost surely, 2^652254649 is an apocalyptic number.

It is an amenable number.

652254649 is a deficient number, since it is larger than the sum of its proper divisors (1).

652254649 is an equidigital number, since it uses as much as digits as its factorization.

652254649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 652254649 is about 25539.2765950800. The cubic root of 652254649 is about 867.2395213826.

The spelling of 652254649 in words is "six hundred fifty-two million, two hundred fifty-four thousand, six hundred forty-nine".