652620019 has 2 divisors, whose sum is σ = 652620020. Its totient is φ = 652620018.

The previous prime is 652619969. The next prime is 652620041. The reversal of 652620019 is 910026256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 652620019 - 2⁹ = 652619507 is a prime.

It is a super-2 number, since 2×652620019² = 851825778399120722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (652620049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326310009 + 326310010.

It is an arithmetic number, because the mean of its divisors is an integer number (326310010).

Almost surely, 2^652620019 is an apocalyptic number.

652620019 is a deficient number, since it is larger than the sum of its proper divisors (1).

652620019 is an equidigital number, since it uses as much as digits as its factorization.

652620019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 652620019 is about 25546.4286936550. The cubic root of 652620019 is about 867.4014234646.

The spelling of 652620019 in words is "six hundred fifty-two million, six hundred twenty thousand, nineteen".