616622253 has 16 divisors (see below), whose sum is σ = 886017216. Its totient is φ = 379198080.

The previous prime is 616622231. The next prime is 616622261. The reversal of 616622253 is 352226616.

It is not a de Polignac number, because 616622253 - 2²⁰ = 615573677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616622653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62526 + ... + 71712.

It is an arithmetic number, because the mean of its divisors is an integer number (55376076).

Almost surely, 2^616622253 is an apocalyptic number.

It is an amenable number.

616622253 is a deficient number, since it is larger than the sum of its proper divisors (269394963).

616622253 is a wasteful number, since it uses less digits than its factorization.

616622253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10924.

The product of its digits is 25920, while the sum is 33.

The square root of 616622253 is about 24831.8797717772. The cubic root of 616622253 is about 851.1505770319.

Adding to 616622253 its reverse (352226616), we get a palindrome (968848869).

The spelling of 616622253 in words is "six hundred sixteen million, six hundred twenty-two thousand, two hundred fifty-three".