611265623 has 2 divisors, whose sum is σ = 611265624. Its totient is φ = 611265622.

The previous prime is 611265607. The next prime is 611265631. The reversal of 611265623 is 326562116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611265623 - 2⁴ = 611265607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611265623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611265673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305632811 + 305632812.

It is an arithmetic number, because the mean of its divisors is an integer number (305632812).

Almost surely, 2^611265623 is an apocalyptic number.

611265623 is a deficient number, since it is larger than the sum of its proper divisors (1).

611265623 is an equidigital number, since it uses as much as digits as its factorization.

611265623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 611265623 is about 24723.7865829650. The cubic root of 611265623 is about 848.6787421984.

The spelling of 611265623 in words is "six hundred eleven million, two hundred sixty-five thousand, six hundred twenty-three".