20064265 has 8 divisors (see below), whose sum is σ = 25929288. Its totient is φ = 14816640.

The previous prime is 20064251. The next prime is 20064277. The reversal of 20064265 is 56246002.

20064265 = T₇₅₃ + T₇₅₄ + ... + T₈₁₇.

It can be written as a sum of positive squares in 4 ways, for example, as 20736 + 20043529 = 144^2 + 4477^2 .

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

It is not a de Polignac number, because 20064265 - 2⁷ = 20064137 is a prime.

It is a Duffinian 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, 154276 + ... + 154405.

It is an arithmetic number, because the mean of its divisors is an integer number (3241161).

Almost surely, 2^20064265 is an apocalyptic number.

It is an amenable number.

20064265 is a deficient number, since it is larger than the sum of its proper divisors (5865023).

20064265 is a wasteful number, since it uses less digits than its factorization.

20064265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308699.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20064265 is about 4479.3152378461. The cubic root of 20064265 is about 271.7321875578.

The spelling of 20064265 in words is "twenty million, sixty-four thousand, two hundred sixty-five".