653442065 has 16 divisors (see below), whose sum is σ = 824478480. Its totient is φ = 496446720.

The previous prime is 653442059. The next prime is 653442071. The reversal of 653442065 is 560244356.

It is a happy number.

653442065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (653442059) and next prime (653442071).

It can be written as a sum of positive squares in 8 ways, for example, as 182682256 + 470759809 = 13516^2 + 21697^2 .

It is not a de Polignac number, because 653442065 - 2⁶ = 653442001 is a prime.

It is a super-2 number, since 2×653442065² = 853973064622928450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28094 + ... + 45783.

It is an arithmetic number, because the mean of its divisors is an integer number (51529905).

Almost surely, 2^653442065 is an apocalyptic number.

It is an amenable number.

653442065 is a deficient number, since it is larger than the sum of its proper divisors (171036415).

653442065 is a wasteful number, since it uses less digits than its factorization.

653442065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73972.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 653442065 is about 25562.5128850823. The cubic root of 653442065 is about 867.7654661815.

The spelling of 653442065 in words is "six hundred fifty-three million, four hundred forty-two thousand, sixty-five".