25057323446 has 16 divisors (see below), whose sum is σ = 38879549520. Its totient is φ = 12102346080.

The previous prime is 25057323437. The next prime is 25057323449. The reversal of 25057323446 is 64432375052.

It is a happy number.

It is a super-2 number, since 2×25057323446² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25057323449) 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, 1207745 + ... + 1228316.

It is an arithmetic number, because the mean of its divisors is an integer number (2429971845).

Almost surely, 2^25057323446 is an apocalyptic number.

25057323446 is a deficient number, since it is larger than the sum of its proper divisors (13822226074).

25057323446 is a wasteful number, since it uses less digits than its factorization.

25057323446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436239.

The product of its (nonzero) digits is 604800, while the sum is 41.

Adding to 25057323446 its reverse (64432375052), we get a palindrome (89489698498).

The spelling of 25057323446 in words is "twenty-five billion, fifty-seven million, three hundred twenty-three thousand, four hundred forty-six".