2500402020 has 24 divisors (see below), whose sum is σ = 7001125824. Its totient is φ = 666773856.

The previous prime is 2500401997. The next prime is 2500402031. The reversal of 2500402020 is 202040052.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20836624 + ... + 20836743.

It is an arithmetic number, because the mean of its divisors is an integer number (291713576).

Almost surely, 2^2500402020 is an apocalyptic number.

2500402020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500402020 is an abundant number, since it is smaller than the sum of its proper divisors (4500723804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2500402020 is a wasteful number, since it uses less digits than its factorization.

2500402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41673379 (or 41673377 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2500402020 is about 50004.0200383929. The cubic root of 2500402020 is about 1357.2815544096.

Adding to 2500402020 its reverse (202040052), we get a palindrome (2702442072).

The spelling of 2500402020 in words is "two billion, five hundred million, four hundred two thousand, twenty".