616526497 has 4 divisors (see below), whose sum is σ = 648975280. Its totient is φ = 584077716.

The previous prime is 616526467. The next prime is 616526509. The reversal of 616526497 is 794625616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616526497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616526447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16224363 + ... + 16224400.

It is an arithmetic number, because the mean of its divisors is an integer number (162243820).

Almost surely, 2^616526497 is an apocalyptic number.

It is an amenable number.

616526497 is a deficient number, since it is larger than the sum of its proper divisors (32448783).

616526497 is a wasteful number, since it uses less digits than its factorization.

616526497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32448782.

The product of its digits is 544320, while the sum is 46.

The square root of 616526497 is about 24829.9516109073. The cubic root of 616526497 is about 851.1065160240.

The spelling of 616526497 in words is "six hundred sixteen million, five hundred twenty-six thousand, four hundred ninety-seven".