1066355325 has 72 divisors (see below), whose sum is σ = 2277794688. Its totient is φ = 466266240.

The previous prime is 1066355309. The next prime is 1066355333. The reversal of 1066355325 is 5235536601.

1066355325 is a `hidden beast` number, since 10 + 6 + 635 + 5 + 3 + 2 + 5 = 666.

It is not a de Polignac number, because 1066355325 - 2⁴ = 1066355309 is a prime.

It is a super-2 number, since 2×1066355325² = 2274227358311711250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066355325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21507 + ... + 50943.

Almost surely, 2^1066355325 is an apocalyptic number.

1066355325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066355325 is an abundant number, since it is smaller than the sum of its proper divisors (1211439363).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066355325 is a wasteful number, since it uses less digits than its factorization.

1066355325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29483 (or 29475 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 1066355325 is about 32655.0964628800. The cubic root of 1066355325 is about 1021.6464901612.

The spelling of 1066355325 in words is "one billion, sixty-six million, three hundred fifty-five thousand, three hundred twenty-five".