25427212230 has 128 divisors (see below), whose sum is σ = 70212925440. Its totient is φ = 5772948480.

The previous prime is 25427212229. The next prime is 25427212303. The reversal of 25427212230 is 3221272452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30306151 + ... + 30306989.

It is an arithmetic number, because the mean of its divisors is an integer number (548538480).

Almost surely, 2^25427212230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25427212230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35106462720).

25427212230 is an abundant number, since it is smaller than the sum of its proper divisors (44785713210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25427212230 is a wasteful number, since it uses less digits than its factorization.

25427212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 13440, while the sum is 30.

Adding to 25427212230 its reverse (3221272452), we get a palindrome (28648484682).

The spelling of 25427212230 in words is "twenty-five billion, four hundred twenty-seven million, two hundred twelve thousand, two hundred thirty".