25030342421 has 16 divisors (see below), whose sum is σ = 28884240000. Its totient is φ = 21246193728.

The previous prime is 25030342339. The next prime is 25030342459. The reversal of 25030342421 is 12424303052.

It is a cyclic number.

It is not a de Polignac number, because 25030342421 - 2²² = 25026148117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25030342621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581455 + ... + 1597203.

It is an arithmetic number, because the mean of its divisors is an integer number (1805265000).

Almost surely, 2^25030342421 is an apocalyptic number.

It is an amenable number.

25030342421 is a deficient number, since it is larger than the sum of its proper divisors (3853897579).

25030342421 is a wasteful number, since it uses less digits than its factorization.

25030342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 25030342421 its reverse (12424303052), we get a palindrome (37454645473).

The spelling of 25030342421 in words is "twenty-five billion, thirty million, three hundred forty-two thousand, four hundred twenty-one".