2498998997 has 16 divisors (see below), whose sum is σ = 3038472000. Its totient is φ = 2025642240.

The previous prime is 2498998951. The next prime is 2498999029. The reversal of 2498998997 is 7998998942.

It is a cyclic number.

It is not a de Polignac number, because 2498998997 - 2⁸ = 2498998741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2498998927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348122 + ... + 355227.

It is an arithmetic number, because the mean of its divisors is an integer number (189904500).

Almost surely, 2^2498998997 is an apocalyptic number.

It is an amenable number.

2498998997 is a deficient number, since it is larger than the sum of its proper divisors (539473003).

2498998997 is a wasteful number, since it uses less digits than its factorization.

2498998997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703396.

The product of its digits is 211631616, while the sum is 74.

The square root of 2498998997 is about 49989.9889677923. The cubic root of 2498998997 is about 1357.0276414370.

Subtracting 2498998997 from its reverse (7998998942), we obtain a palindrome (5499999945).

The spelling of 2498998997 in words is "two billion, four hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred ninety-seven".