25437873452 has 6 divisors (see below), whose sum is σ = 44516278548. Its totient is φ = 12718936724.

The previous prime is 25437873443. The next prime is 25437873457.

25437873452 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 25437873452.

It is not an unprimeable number, because it can be changed into a prime (25437873457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3179734178 + ... + 3179734185.

It is an arithmetic number, because the mean of its divisors is an integer number (7419379758).

Almost surely, 2^25437873452 is an apocalyptic number.

It is an amenable number.

25437873452 is a deficient number, since it is larger than the sum of its proper divisors (19078405096).

25437873452 is a wasteful number, since it uses less digits than its factorization.

25437873452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359468367 (or 6359468365 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 50.

The spelling of 25437873452 in words is "twenty-five billion, four hundred thirty-seven million, eight hundred seventy-three thousand, four hundred fifty-two".