25346550436 has 27 divisors (see below), whose sum is σ = 46382256193. Its totient is φ = 12118760720.

The previous prime is 25346550433. The next prime is 25346550457. The reversal of 25346550436 is 63405564352.

The square root of 25346550436 is 159206.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5011790436 + 20334760000 = 70794^2 + 142600^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25346550392 and 25346550401.

It is not an unprimeable number, because it can be changed into a prime (25346550433) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7321746 + ... + 7325206.

Almost surely, 2^25346550436 is an apocalyptic number.

25346550436 is the 159206-th square number.

It is an amenable number.

25346550436 is a deficient number, since it is larger than the sum of its proper divisors (21035705757).

25346550436 is an frugal number, since it uses more digits than its factorization.

25346550436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 25346550436 in words is "twenty-five billion, three hundred forty-six million, five hundred fifty thousand, four hundred thirty-six".