616452953 has 4 divisors (see below), whose sum is σ = 624897588. Its totient is φ = 608008320.

The previous prime is 616452943. The next prime is 616452961. The reversal of 616452953 is 359254616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 479960464 + 136492489 = 21908^2 + 11683^2 .

It is a cyclic number.

It is not a de Polignac number, because 616452953 - 2⁴ = 616452937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616452953.

It is not an unprimeable number, because it can be changed into a prime (616452943) 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, 4222208 + ... + 4222353.

It is an arithmetic number, because the mean of its divisors is an integer number (156224397).

Almost surely, 2^616452953 is an apocalyptic number.

It is an amenable number.

616452953 is a deficient number, since it is larger than the sum of its proper divisors (8444635).

616452953 is an equidigital number, since it uses as much as digits as its factorization.

616452953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444634.

The product of its digits is 194400, while the sum is 41.

The square root of 616452953 is about 24828.4706133906. The cubic root of 616452953 is about 851.0726725115.

The spelling of 616452953 in words is "six hundred sixteen million, four hundred fifty-two thousand, nine hundred fifty-three".