25427001538 has 16 divisors (see below), whose sum is σ = 40549709376. Its totient is φ = 11931290800.

The previous prime is 25427001499. The next prime is 25427001539. The reversal of 25427001538 is 83510072452.

It is a super-3 number, since 3×25427001538³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25427001497 and 25427001506.

It is not an unprimeable number, because it can be changed into a prime (25427001539) 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, 5212288 + ... + 5217163.

It is an arithmetic number, because the mean of its divisors is an integer number (2534356836).

Almost surely, 2^25427001538 is an apocalyptic number.

25427001538 is a deficient number, since it is larger than the sum of its proper divisors (15122707838).

25427001538 is a wasteful number, since it uses less digits than its factorization.

25427001538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429529.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 25427001538 in words is "twenty-five billion, four hundred twenty-seven million, one thousand, five hundred thirty-eight".