25552825 has 6 divisors (see below), whose sum is σ = 31685534. Its totient is φ = 20442240.

The previous prime is 25552801. The next prime is 25552831. The reversal of 25552825 is 52825552.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 110889 + 25441936 = 333^2 + 5044^2 .

It is not a de Polignac number, because 25552825 - 2¹³ = 25544633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 511032 + ... + 511081.

Almost surely, 2^25552825 is an apocalyptic number.

25552825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25552825 is a deficient number, since it is larger than the sum of its proper divisors (6132709).

25552825 is a wasteful number, since it uses less digits than its factorization.

25552825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022123 (or 1022118 counting only the distinct ones).

The product of its digits is 40000, while the sum is 34.

The square root of 25552825 is about 5054.9802175676. The cubic root of 25552825 is about 294.5413729643.

The spelling of 25552825 in words is "twenty-five million, five hundred fifty-two thousand, eight hundred twenty-five".