25414151421 has 16 divisors (see below), whose sum is σ = 35066597760. Its totient is φ = 16352656320.

The previous prime is 25414151419. The next prime is 25414151429. The reversal of 25414151421 is 12415141452.

It is not a de Polignac number, because 25414151421 - 2¹ = 25414151419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25414151429) 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, 197856 + ... + 299958.

It is an arithmetic number, because the mean of its divisors is an integer number (2191662360).

Almost surely, 2^25414151421 is an apocalyptic number.

It is an amenable number.

25414151421 is a deficient number, since it is larger than the sum of its proper divisors (9652446339).

25414151421 is a wasteful number, since it uses less digits than its factorization.

25414151421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104996.

The product of its digits is 6400, while the sum is 30.

Adding to 25414151421 its reverse (12415141452), we get a palindrome (37829292873).

The spelling of 25414151421 in words is "twenty-five billion, four hundred fourteen million, one hundred fifty-one thousand, four hundred twenty-one".