25413154421 has 8 divisors (see below), whose sum is σ = 25791189120. Its totient is φ = 25036528608.

The previous prime is 25413154369. The next prime is 25413154433. The reversal of 25413154421 is 12445131452.

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 25413154421 - 2¹⁸ = 25412892277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25413154121) 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, 315851 + ... + 388056.

It is an arithmetic number, because the mean of its divisors is an integer number (3223898640).

Almost surely, 2^25413154421 is an apocalyptic number.

It is an amenable number.

25413154421 is a deficient number, since it is larger than the sum of its proper divisors (378034699).

25413154421 is an equidigital number, since it uses as much as digits as its factorization.

25413154421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704443.

The product of its digits is 19200, while the sum is 32.

Adding to 25413154421 its reverse (12445131452), we get a palindrome (37858285873).

The spelling of 25413154421 in words is "twenty-five billion, four hundred thirteen million, one hundred fifty-four thousand, four hundred twenty-one".