25506527 has 4 divisors (see below), whose sum is σ = 25554216. Its totient is φ = 25458840.

The previous prime is 25506497. The next prime is 25506557. The reversal of 25506527 is 72560552.

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

It is an interprime number because it is at equal distance from previous prime (25506497) and next prime (25506557).

It is a cyclic number.

It is not a de Polignac number, because 25506527 - 2⁶ = 25506463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25506493 and 25506502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25506557) 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, 23033 + ... + 24114.

It is an arithmetic number, because the mean of its divisors is an integer number (6388554).

Almost surely, 2^25506527 is an apocalyptic number.

25506527 is a deficient number, since it is larger than the sum of its proper divisors (47689).

25506527 is an equidigital number, since it uses as much as digits as its factorization.

25506527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47688.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 25506527 is about 5050.3986971327. The cubic root of 25506527 is about 294.3633767196.

The spelling of 25506527 in words is "twenty-five million, five hundred six thousand, five hundred twenty-seven".