64525911 has 8 divisors (see below), whose sum is σ = 88809984. Its totient is φ = 41629560.

The previous prime is 64525907. The next prime is 64525927. The reversal of 64525911 is 11952546.

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

It is not a de Polignac number, because 64525911 - 2² = 64525907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64525991) 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, 346821 + ... + 347006.

It is an arithmetic number, because the mean of its divisors is an integer number (11101248).

Almost surely, 2^64525911 is an apocalyptic number.

64525911 is a deficient number, since it is larger than the sum of its proper divisors (24284073).

64525911 is a wasteful number, since it uses less digits than its factorization.

64525911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693861.

The product of its digits is 10800, while the sum is 33.

The square root of 64525911 is about 8032.8021885267. The cubic root of 64525911 is about 401.0926604318.

The spelling of 64525911 in words is "sixty-four million, five hundred twenty-five thousand, nine hundred eleven".