18025552 has 10 divisors (see below), whose sum is σ = 34924538. Its totient is φ = 9012768.

The previous prime is 18025543. The next prime is 18025577. The reversal of 18025552 is 25552081.

It can be written as a sum of positive squares in only one way, i.e., 11451456 + 6574096 = 3384^2 + 2564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18025552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563283 + ... + 563314.

Almost surely, 2^18025552 is an apocalyptic number.

It is an amenable number.

18025552 is a deficient number, since it is larger than the sum of its proper divisors (16898986).

18025552 is a wasteful number, since it uses less digits than its factorization.

18025552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126605 (or 1126599 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 18025552 is about 4245.6509512677. The cubic root of 18025552 is about 262.1980903878.

The spelling of 18025552 in words is "eighteen million, twenty-five thousand, five hundred fifty-two".