2497199881 has 4 divisors (see below), whose sum is σ = 2724218064. Its totient is φ = 2270181700.

The previous prime is 2497199879. The next prime is 2497199891. The reversal of 2497199881 is 1889917942.

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 not a de Polignac number, because 2497199881 - 2¹ = 2497199879 is a prime.

It is a super-2 number, since 2×2497199881² = 12472014491332828322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2497199891) 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, 113509075 + ... + 113509096.

It is an arithmetic number, because the mean of its divisors is an integer number (681054516).

Almost surely, 2^2497199881 is an apocalyptic number.

It is an amenable number.

2497199881 is a deficient number, since it is larger than the sum of its proper divisors (227018183).

2497199881 is a wasteful number, since it uses less digits than its factorization.

2497199881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227018182.

The product of its digits is 2612736, while the sum is 58.

The square root of 2497199881 is about 49971.9909649395. The cubic root of 2497199881 is about 1356.7019061760.

The spelling of 2497199881 in words is "two billion, four hundred ninety-seven million, one hundred ninety-nine thousand, eight hundred eighty-one".