25706525 has 48 divisors (see below), whose sum is σ = 37914240. Its totient is φ = 17107200.

The previous prime is 25706507. The next prime is 25706531. The reversal of 25706525 is 52560752.

It is not a de Polignac number, because 25706525 - 2¹² = 25702429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25706491 and 25706500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141935 + ... + 142115.

It is an arithmetic number, because the mean of its divisors is an integer number (789880).

Almost surely, 2^25706525 is an apocalyptic number.

25706525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25706525 is a deficient number, since it is larger than the sum of its proper divisors (12207715).

25706525 is a wasteful number, since it uses less digits than its factorization.

25706525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 241 counting only the distinct ones).

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

The square root of 25706525 is about 5070.1602538776. The cubic root of 25706525 is about 295.1307473669.

The spelling of 25706525 in words is "twenty-five million, seven hundred six thousand, five hundred twenty-five".