64252225 has 24 divisors (see below), whose sum is σ = 83869632. Its totient is φ = 48734400.

The previous prime is 64252219. The next prime is 64252241. The reversal of 64252225 is 52225246.

It is not a de Polignac number, because 64252225 - 2³ = 64252217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64252193 and 64252202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74899 + ... + 75751.

It is an arithmetic number, because the mean of its divisors is an integer number (3494568).

Almost surely, 2^64252225 is an apocalyptic number.

It is an amenable number.

64252225 is a deficient number, since it is larger than the sum of its proper divisors (19617407).

64252225 is a wasteful number, since it uses less digits than its factorization.

64252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1012 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 64252225 is about 8015.7485614258. The cubic root of 64252225 is about 400.5247799639.

The spelling of 64252225 in words is "sixty-four million, two hundred fifty-two thousand, two hundred twenty-five".