25627212321 has 8 divisors (see below), whose sum is σ = 34170660000. Its totient is φ = 17084286432.

The previous prime is 25627212313. The next prime is 25627212323. The reversal of 25627212321 is 12321272652.

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

It is not a de Polignac number, because 25627212321 - 2³ = 25627212313 is a prime.

It is a super-2 number, since 2×25627212321² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25627212323) 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, 3930 + ... + 226428.

It is an arithmetic number, because the mean of its divisors is an integer number (4271332500).

Almost surely, 2^25627212321 is an apocalyptic number.

It is an amenable number.

25627212321 is a deficient number, since it is larger than the sum of its proper divisors (8543447679).

25627212321 is a wasteful number, since it uses less digits than its factorization.

25627212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260895.

The product of its digits is 20160, while the sum is 33.

Adding to 25627212321 its reverse (12321272652), we get a palindrome (37948484973).

The spelling of 25627212321 in words is "twenty-five billion, six hundred twenty-seven million, two hundred twelve thousand, three hundred twenty-one".