64625111 has 8 divisors (see below), whose sum is σ = 67336704. Its totient is φ = 61952760.

The previous prime is 64625107. The next prime is 64625117. The reversal of 64625111 is 11152646.

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

It is a cyclic number.

It is not a de Polignac number, because 64625111 - 2² = 64625107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64625117) 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, 6425 + ... + 13058.

It is an arithmetic number, because the mean of its divisors is an integer number (8417088).

Almost surely, 2^64625111 is an apocalyptic number.

64625111 is a deficient number, since it is larger than the sum of its proper divisors (2711593).

64625111 is a wasteful number, since it uses less digits than its factorization.

64625111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621.

The product of its digits is 1440, while the sum is 26.

The square root of 64625111 is about 8038.9744992754. The cubic root of 64625111 is about 401.2980973843.

Adding to 64625111 its reverse (11152646), we get a palindrome (75777757).

The spelling of 64625111 in words is "sixty-four million, six hundred twenty-five thousand, one hundred eleven".