2499520407 has 4 divisors (see below), whose sum is σ = 3332693880. Its totient is φ = 1666346936.

The previous prime is 2499520399. The next prime is 2499520417. The reversal of 2499520407 is 7040259942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2499520407 - 2³ = 2499520399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499520417) 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, 416586732 + ... + 416586737.

It is an arithmetic number, because the mean of its divisors is an integer number (833173470).

Almost surely, 2^2499520407 is an apocalyptic number.

2499520407 is a deficient number, since it is larger than the sum of its proper divisors (833173473).

2499520407 is an equidigital number, since it uses as much as digits as its factorization.

2499520407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833173472.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2499520407 is about 49995.2038399685. The cubic root of 2499520407 is about 1357.1220150346.

The spelling of 2499520407 in words is "two billion, four hundred ninety-nine million, five hundred twenty thousand, four hundred seven".