64422125 has 8 divisors (see below), whose sum is σ = 80398968. Its totient is φ = 51537600.

The previous prime is 64422121. The next prime is 64422131. The reversal of 64422125 is 52122446.

It can be written as a sum of positive squares in 4 ways, for example, as 19518724 + 44903401 = 4418^2 + 6701^2 .

It is not a de Polignac number, because 64422125 - 2² = 64422121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64422094 and 64422103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64422121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257564 + ... + 257813.

It is an arithmetic number, because the mean of its divisors is an integer number (10049871).

Almost surely, 2^64422125 is an apocalyptic number.

It is an amenable number.

64422125 is a deficient number, since it is larger than the sum of its proper divisors (15976843).

64422125 is an equidigital number, since it uses as much as digits as its factorization.

64422125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515392 (or 515382 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 64422125 is about 8026.3394520790. The cubic root of 64422125 is about 400.8775006572.

The spelling of 64422125 in words is "sixty-four million, four hundred twenty-two thousand, one hundred twenty-five".