2523617966 has 4 divisors (see below), whose sum is σ = 3785426952. Its totient is φ = 1261808982.

The previous prime is 2523617963. The next prime is 2523618001. The reversal of 2523617966 is 6697163252.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2523617966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523617963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630904490 + ... + 630904493.

It is an arithmetic number, because the mean of its divisors is an integer number (946356738).

Almost surely, 2^2523617966 is an apocalyptic number.

2523617966 is a deficient number, since it is larger than the sum of its proper divisors (1261808986).

2523617966 is a wasteful number, since it uses less digits than its factorization.

2523617966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261808985.

The product of its digits is 816480, while the sum is 47.

The square root of 2523617966 is about 50235.6244710863. The cubic root of 2523617966 is about 1361.4693544725.

The spelling of 2523617966 in words is "two billion, five hundred twenty-three million, six hundred seventeen thousand, nine hundred sixty-six".