1825664305 has 8 divisors (see below), whose sum is σ = 2306102400. Its totient is φ = 1383661296.

The previous prime is 1825664293. The next prime is 1825664333. The reversal of 1825664305 is 5034665281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1825664305 - 2¹⁵ = 1825631537 is a prime.

It is a super-2 number, since 2×1825664305² = 6666100309102266050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608665 + ... + 9608854.

It is an arithmetic number, because the mean of its divisors is an integer number (288262800).

Almost surely, 2^1825664305 is an apocalyptic number.

It is an amenable number.

1825664305 is a deficient number, since it is larger than the sum of its proper divisors (480438095).

1825664305 is a wasteful number, since it uses less digits than its factorization.

1825664305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19217543.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1825664305 is about 42727.7931211056. The cubic root of 1825664305 is about 1222.1944524897.

The spelling of 1825664305 in words is "one billion, eight hundred twenty-five million, six hundred sixty-four thousand, three hundred five".