2520400499 has 2 divisors, whose sum is σ = 2520400500. Its totient is φ = 2520400498.

The previous prime is 2520400459. The next prime is 2520400537. The reversal of 2520400499 is 9940040252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2520400499 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520400429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260200249 + 1260200250.

It is an arithmetic number, because the mean of its divisors is an integer number (1260200250).

Almost surely, 2^2520400499 is an apocalyptic number.

2520400499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520400499 is an equidigital number, since it uses as much as digits as its factorization.

2520400499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2520400499 is about 50203.5904990868. The cubic root of 2520400499 is about 1360.8905101679.

The spelling of 2520400499 in words is "two billion, five hundred twenty million, four hundred thousand, four hundred ninety-nine".