25506532 has 6 divisors (see below), whose sum is σ = 44636438. Its totient is φ = 12753264.

The previous prime is 25506497. The next prime is 25506557. The reversal of 25506532 is 23560552.

It can be written as a sum of positive squares in only one way, i.e., 13003236 + 12503296 = 3606^2 + 3536^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25506532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188313 + ... + 3188320.

Almost surely, 2^25506532 is an apocalyptic number.

It is an amenable number.

25506532 is a deficient number, since it is larger than the sum of its proper divisors (19129906).

25506532 is a wasteful number, since it uses less digits than its factorization.

25506532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376637 (or 6376635 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 25506532 is about 5050.3991921431. The cubic root of 25506532 is about 294.3633959541.

The spelling of 25506532 in words is "twenty-five million, five hundred six thousand, five hundred thirty-two".