1065772250 has 32 divisors (see below), whose sum is σ = 2059499520. Its totient is φ = 412554000.

The previous prime is 1065772249. The next prime is 1065772259. The reversal of 1065772250 is 522775601.

It is a happy number.

It is a super-2 number, since 2×1065772250² = 2271740977740125000, 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 1065772250.

It is not an unprimeable number, because it can be changed into a prime (1065772259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61010 + ... + 76509.

It is an arithmetic number, because the mean of its divisors is an integer number (64359360).

Almost surely, 2^1065772250 is an apocalyptic number.

1065772250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1065772250 is a deficient number, since it is larger than the sum of its proper divisors (993727270).

1065772250 is a wasteful number, since it uses less digits than its factorization.

1065772250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137567 (or 137557 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 1065772250 is about 32646.1674626594. The cubic root of 1065772250 is about 1021.4602466954.

The spelling of 1065772250 in words is "one billion, sixty-five million, seven hundred seventy-two thousand, two hundred fifty".