25401322234 has 16 divisors (see below), whose sum is σ = 38379463848. Its totient is φ = 12608451072.

The previous prime is 25401322231. The next prime is 25401322249. The reversal of 25401322234 is 43222310452.

It can be written as a sum of positive squares in 4 ways, for example, as 25394016025 + 7306209 = 159355^2 + 2703^2 .

It is not an unprimeable number, because it can be changed into a prime (25401322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109522 + ... + 250594.

Almost surely, 2^25401322234 is an apocalyptic number.

25401322234 is a deficient number, since it is larger than the sum of its proper divisors (12978141614).

25401322234 is a wasteful number, since it uses less digits than its factorization.

25401322234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141729.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 25401322234 its reverse (43222310452), we get a palindrome (68623632686).

The spelling of 25401322234 in words is "twenty-five billion, four hundred one million, three hundred twenty-two thousand, two hundred thirty-four".