64125722 has 32 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 29203200.

The previous prime is 64125697. The next prime is 64125749. The reversal of 64125722 is 22752146.

It is a happy number.

It is a super-2 number, since 2×64125722² = 8224216444042568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122822 + ... + 123342.

It is an arithmetic number, because the mean of its divisors is an integer number (3288600).

Almost surely, 2^64125722 is an apocalyptic number.

64125722 is a deficient number, since it is larger than the sum of its proper divisors (41109478).

64125722 is a wasteful number, since it uses less digits than its factorization.

64125722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its digits is 6720, while the sum is 29.

The square root of 64125722 is about 8007.8537698937. The cubic root of 64125722 is about 400.2617495140.

Adding to 64125722 its reverse (22752146), we get a palindrome (86877868).

The spelling of 64125722 in words is "sixty-four million, one hundred twenty-five thousand, seven hundred twenty-two".