2491192552 has 8 divisors (see below), whose sum is σ = 4670986050. Its totient is φ = 1245596272.

The previous prime is 2491192531. The next prime is 2491192579. The reversal of 2491192552 is 2552911942.

It can be written as a sum of positive squares in only one way, i.e., 1353209796 + 1137982756 = 36786^2 + 33734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2491192552² = 12412080662280545408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155699527 + ... + 155699542.

Almost surely, 2^2491192552 is an apocalyptic number.

It is an amenable number.

2491192552 is a deficient number, since it is larger than the sum of its proper divisors (2179793498).

2491192552 is a wasteful number, since it uses less digits than its factorization.

2491192552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311399075 (or 311399071 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 2491192552 is about 49911.8478119174. The cubic root of 2491192552 is about 1355.6131268431.

The spelling of 2491192552 in words is "two billion, four hundred ninety-one million, one hundred ninety-two thousand, five hundred fifty-two".