2225805765 has 8 divisors (see below), whose sum is σ = 3561289248. Its totient is φ = 1187096400.

The previous prime is 2225805731. The next prime is 2225805779. The reversal of 2225805765 is 5675085222.

It is a happy number.

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

It is not a de Polignac number, because 2225805765 - 2⁸ = 2225805509 is a prime.

It is a super-2 number, since 2×2225805765² = 9908422607014470450, which contains 22 as substring.

It is a congruent number.

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, 74193511 + ... + 74193540.

It is an arithmetic number, because the mean of its divisors is an integer number (445161156).

Almost surely, 2^2225805765 is an apocalyptic number.

It is an amenable number.

2225805765 is a deficient number, since it is larger than the sum of its proper divisors (1335483483).

2225805765 is a wasteful number, since it uses less digits than its factorization.

2225805765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148387059.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 2225805765 is about 47178.4459790697. The cubic root of 2225805765 is about 1305.6569584561.

The spelling of 2225805765 in words is "two billion, two hundred twenty-five million, eight hundred five thousand, seven hundred sixty-five".