25320552044 has 12 divisors (see below), whose sum is σ = 44312255064. Its totient is φ = 12659907744.

The previous prime is 25320552013. The next prime is 25320552083. The reversal of 25320552044 is 44025502352.

It is a super-2 number, since 2×25320552044² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25320552044.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113747 + ... + 252149.

It is an arithmetic number, because the mean of its divisors is an integer number (3692687922).

Almost surely, 2^25320552044 is an apocalyptic number.

It is an amenable number.

25320552044 is a deficient number, since it is larger than the sum of its proper divisors (18991703020).

25320552044 is a wasteful number, since it uses less digits than its factorization.

25320552044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184144 (or 184142 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 25320552044 in words is "twenty-five billion, three hundred twenty million, five hundred fifty-two thousand, forty-four".