64525814 has 4 divisors (see below), whose sum is σ = 96788724. Its totient is φ = 32262906.

The previous prime is 64525807. The next prime is 64525823. The reversal of 64525814 is 41852546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41852546 = 2 ⋅20926273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16131452 + ... + 16131455.

It is an arithmetic number, because the mean of its divisors is an integer number (24197181).

Almost surely, 2^64525814 is an apocalyptic number.

64525814 is a deficient number, since it is larger than the sum of its proper divisors (32262910).

64525814 is a wasteful number, since it uses less digits than its factorization.

64525814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32262909.

The product of its digits is 38400, while the sum is 35.

The square root of 64525814 is about 8032.7961507809. The cubic root of 64525814 is about 401.0924594479.

The spelling of 64525814 in words is "sixty-four million, five hundred twenty-five thousand, eight hundred fourteen".