2508338997 has 6 divisors (see below), whose sum is σ = 3623156342. Its totient is φ = 1672225992.

The previous prime is 2508338977. The next prime is 2508338999. The reversal of 2508338997 is 7998338052.

It is a happy number.

2508338997 is a `hidden beast` number, since 250 + 8 + 3 + 389 + 9 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2397962961 + 110376036 = 48969^2 + 10506^2 .

It is not a de Polignac number, because 2508338997 - 2⁷ = 2508338869 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 (2508338999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139352158 + ... + 139352175.

Almost surely, 2^2508338997 is an apocalyptic number.

It is an amenable number.

2508338997 is a deficient number, since it is larger than the sum of its proper divisors (1114817345).

2508338997 is a wasteful number, since it uses less digits than its factorization.

2508338997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278704339 (or 278704336 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 2508338997 is about 50083.3205468647. The cubic root of 2508338997 is about 1358.7161682458.

The spelling of 2508338997 in words is "two billion, five hundred eight million, three hundred thirty-eight thousand, nine hundred ninety-seven".