25723837 has 4 divisors (see below), whose sum is σ = 25807936. Its totient is φ = 25639740.

The previous prime is 25723811. The next prime is 25723849. The reversal of 25723837 is 73832752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25723837 - 2¹¹ = 25721789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25723796 and 25723805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25723897) 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, 41589 + ... + 42202.

It is an arithmetic number, because the mean of its divisors is an integer number (6451984).

Almost surely, 2^25723837 is an apocalyptic number.

It is an amenable number.

25723837 is a deficient number, since it is larger than the sum of its proper divisors (84099).

25723837 is an equidigital number, since it uses as much as digits as its factorization.

25723837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84098.

The product of its digits is 70560, while the sum is 37.

The square root of 25723837 is about 5071.8672104068. The cubic root of 25723837 is about 295.1969842072.

The spelling of 25723837 in words is "twenty-five million, seven hundred twenty-three thousand, eight hundred thirty-seven".