25032897961 has 8 divisors (see below), whose sum is σ = 25297612200. Its totient is φ = 24768319488.

The previous prime is 25032897893. The next prime is 25032897973. The reversal of 25032897961 is 16979823052.

It can be written as a sum of positive squares in 4 ways, for example, as 528126361 + 24504771600 = 22981^2 + 156540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25032897961 - 2⁷ = 25032897833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25032897899 and 25032897908.

It is not an unprimeable number, because it can be changed into a prime (25032817961) 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, 360885 + ... + 424621.

It is an arithmetic number, because the mean of its divisors is an integer number (3162201525).

Almost surely, 2^25032897961 is an apocalyptic number.

It is an amenable number.

25032897961 is a deficient number, since it is larger than the sum of its proper divisors (264714239).

25032897961 is an equidigital number, since it uses as much as digits as its factorization.

25032897961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67883.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 25032897961 in words is "twenty-five billion, thirty-two million, eight hundred ninety-seven thousand, nine hundred sixty-one".