25273878 has 16 divisors (see below), whose sum is σ = 57768960. Its totient is φ = 7221096.

The previous prime is 25273867. The next prime is 25273879. The reversal of 25273878 is 87837252.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 601759 = 25273878 / (2 + 5 + 2 + 7 + 3 + 8 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25273879) 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, 300838 + ... + 300921.

It is an arithmetic number, because the mean of its divisors is an integer number (3610560).

Almost surely, 2^25273878 is an apocalyptic number.

25273878 is an abundant number, since it is smaller than the sum of its proper divisors (32495082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25273878 is a wasteful number, since it uses less digits than its factorization.

25273878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601771.

The product of its digits is 188160, while the sum is 42.

The square root of 25273878 is about 5027.3131989165. The cubic root of 25273878 is about 293.4656637208.

The spelling of 25273878 in words is "twenty-five million, two hundred seventy-three thousand, eight hundred seventy-eight".