25874863 has 32 divisors (see below), whose sum is σ = 32440320. Its totient is φ = 20170080.

The previous prime is 25874861. The next prime is 25874879. The reversal of 25874863 is 36847852.

It is not a de Polignac number, because 25874863 - 2¹ = 25874861 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25874861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438528 + ... + 438586.

It is an arithmetic number, because the mean of its divisors is an integer number (1013760).

Almost surely, 2^25874863 is an apocalyptic number.

25874863 is a deficient number, since it is larger than the sum of its proper divisors (6565457).

25874863 is a wasteful number, since it uses less digits than its factorization.

25874863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 322560, while the sum is 43.

The square root of 25874863 is about 5086.7340209608. The cubic root of 25874863 is about 295.7735629738.

The spelling of 25874863 in words is "twenty-five million, eight hundred seventy-four thousand, eight hundred sixty-three".