25241133421 has 8 divisors (see below), whose sum is σ = 28998042624. Its totient is φ = 21521982480.

The previous prime is 25241133389. The next prime is 25241133431. The reversal of 25241133421 is 12433114252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25241133421 - 2⁵ = 25241133389 is a prime.

It is a super-2 number, since 2×25241133421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25241133421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25241133431) 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, 9438130 + ... + 9440803.

It is an arithmetic number, because the mean of its divisors is an integer number (3624755328).

Almost surely, 2^25241133421 is an apocalyptic number.

It is an amenable number.

25241133421 is a deficient number, since it is larger than the sum of its proper divisors (3756909203).

25241133421 is a wasteful number, since it uses less digits than its factorization.

25241133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879131.

The product of its digits is 5760, while the sum is 28.

Adding to 25241133421 its reverse (12433114252), we get a palindrome (37674247673).

The spelling of 25241133421 in words is "twenty-five billion, two hundred forty-one million, one hundred thirty-three thousand, four hundred twenty-one".