4025002540 has 24 divisors (see below), whose sum is σ = 9102698640. Its totient is φ = 1486154688.

The previous prime is 4025002517. The next prime is 4025002549. The reversal of 4025002540 is 452005204.

It is not an unprimeable number, because it can be changed into a prime (4025002549) 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, 7740130 + ... + 7740649.

It is an arithmetic number, because the mean of its divisors is an integer number (379279110).

Almost surely, 2^4025002540 is an apocalyptic number.

It is an amenable number.

4025002540 is an abundant number, since it is smaller than the sum of its proper divisors (5077696100).

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

4025002540 is a wasteful number, since it uses less digits than its factorization.

4025002540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15480801 (or 15480799 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4025002540 is about 63442.9077202488. The cubic root of 4025002540 is about 1590.7016061623.

Adding to 4025002540 its reverse (452005204), we get a palindrome (4477007744).

The spelling of 4025002540 in words is "four billion, twenty-five million, two thousand, five hundred forty".