615252653 has 2 divisors, whose sum is σ = 615252654. Its totient is φ = 615252652.

The previous prime is 615252647. The next prime is 615252679. The reversal of 615252653 is 356252516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608214244 + 7038409 = 24662^2 + 2653^2 .

It is a cyclic number.

It is not a de Polignac number, because 615252653 - 2¹⁰ = 615251629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615258653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307626326 + 307626327.

It is an arithmetic number, because the mean of its divisors is an integer number (307626327).

Almost surely, 2^615252653 is an apocalyptic number.

It is an amenable number.

615252653 is a deficient number, since it is larger than the sum of its proper divisors (1).

615252653 is an equidigital number, since it uses as much as digits as its factorization.

615252653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 35.

The square root of 615252653 is about 24804.2869883414. The cubic root of 615252653 is about 850.5199370272.

The spelling of 615252653 in words is "six hundred fifteen million, two hundred fifty-two thousand, six hundred fifty-three".