1064921725 has 24 divisors (see below), whose sum is σ = 1511153280. Its totient is φ = 729261120.

The previous prime is 1064921719. The next prime is 1064921729. The reversal of 1064921725 is 5271294601.

It is not a de Polignac number, because 1064921725 - 2¹¹ = 1064919677 is a prime.

It is a super-2 number, since 2×1064921725² = 2268116560753951250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064921729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143199 + ... + 150451.

It is an arithmetic number, because the mean of its divisors is an integer number (62964720).

Almost surely, 2^1064921725 is an apocalyptic number.

It is an amenable number.

1064921725 is a deficient number, since it is larger than the sum of its proper divisors (446231555).

1064921725 is an equidigital number, since it uses as much as digits as its factorization.

1064921725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8109 (or 8104 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1064921725 is about 32633.1384485158. The cubic root of 1064921725 is about 1021.1884535789.

The spelling of 1064921725 in words is "one billion, sixty-four million, nine hundred twenty-one thousand, seven hundred twenty-five".