25727478 has 32 divisors (see below), whose sum is σ = 61364736. Its totient is φ = 7030848.

The previous prime is 25727467. The next prime is 25727503. The reversal of 25727478 is 87472752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12351 + ... + 14282.

It is an arithmetic number, because the mean of its divisors is an integer number (1917648).

Almost surely, 2^25727478 is an apocalyptic number.

25727478 is an abundant number, since it is smaller than the sum of its proper divisors (35637258).

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

25727478 is a wasteful number, since it uses less digits than its factorization.

25727478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668.

The product of its digits is 219520, while the sum is 42.

The square root of 25727478 is about 5072.2261384919. The cubic root of 25727478 is about 295.2109111279.

The spelling of 25727478 in words is "twenty-five million, seven hundred twenty-seven thousand, four hundred seventy-eight".