25014231021 has 32 divisors (see below), whose sum is σ = 36625155840. Its totient is φ = 15091891200.

The previous prime is 25014230993. The next prime is 25014231037. The reversal of 25014231021 is 12013241052.

It is not a de Polignac number, because 25014231021 - 2¹⁴ = 25014214637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25014231061) 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, 722965 + ... + 756773.

It is an arithmetic number, because the mean of its divisors is an integer number (1144536120).

Almost surely, 2^25014231021 is an apocalyptic number.

It is an amenable number.

25014231021 is a deficient number, since it is larger than the sum of its proper divisors (11610924819).

25014231021 is a wasteful number, since it uses less digits than its factorization.

25014231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34197.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 25014231021 its reverse (12013241052), we get a palindrome (37027472073).

The spelling of 25014231021 in words is "twenty-five billion, fourteen million, two hundred thirty-one thousand, twenty-one".