2518997 has 8 divisors (see below), whose sum is σ = 2786616. Its totient is φ = 2261952.

The previous prime is 2518987. The next prime is 2519003. The reversal of 2518997 is 7998152.

It can be written as a sum of positive squares in 4 ways, for example, as 857476 + 1661521 = 926^2 + 1289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2518997 - 2⁴ = 2518981 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 (2518927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (348327).

2^2518997 is an apocalyptic number.

It is an amenable number.

2518997 is a deficient number, since it is larger than the sum of its proper divisors (267619).

2518997 is a wasteful number, since it uses less digits than its factorization.

2518997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287.

The product of its digits is 45360, while the sum is 41.

The square root of 2518997 is about 1587.1348398923. The cubic root of 2518997 is about 136.0637856788.

The spelling of 2518997 in words is "two million, five hundred eighteen thousand, nine hundred ninety-seven".