2525304040021 has 32 divisors (see below), whose sum is σ = 3040440883200. Its totient is φ = 2050660392000.

The previous prime is 2525304039989. The next prime is 2525304040043. The reversal of 2525304040021 is 1200404035252.

It is a cyclic number.

It is not a de Polignac number, because 2525304040021 - 2⁵ = 2525304039989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525304040081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7059015 + ... + 7408123.

It is an arithmetic number, because the mean of its divisors is an integer number (95013777600).

Almost surely, 2^{2525304040021} is an apocalyptic number.

It is an amenable number.

2525304040021 is a deficient number, since it is larger than the sum of its proper divisors (515136843179).

2525304040021 is a wasteful number, since it uses less digits than its factorization.

2525304040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349569.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 2525304040021 its reverse (1200404035252), we get a palindrome (3725708075273).

The spelling of 2525304040021 in words is "two trillion, five hundred twenty-five billion, three hundred four million, forty thousand, twenty-one".