25860973 has 4 divisors (see below), whose sum is σ = 25896988. Its totient is φ = 25824960.

The previous prime is 25860971. The next prime is 25860983. The reversal of 25860973 is 37906852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16752649 + 9108324 = 4093^2 + 3018^2 .

It is a cyclic number.

It is not a de Polignac number, because 25860973 - 2¹ = 25860971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25860971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16908 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (6474247).

Almost surely, 2^25860973 is an apocalyptic number.

It is an amenable number.

25860973 is a deficient number, since it is larger than the sum of its proper divisors (36015).

25860973 is an equidigital number, since it uses as much as digits as its factorization.

25860973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36014.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 25860973 is about 5085.3685215528. The cubic root of 25860973 is about 295.7206283278.

The spelling of 25860973 in words is "twenty-five million, eight hundred sixty thousand, nine hundred seventy-three".