64528534 has 16 divisors (see below), whose sum is σ = 110747808. Its totient is φ = 27623232.

The previous prime is 64528523. The next prime is 64528561. The reversal of 64528534 is 43582546.

It is a junction number, because it is equal to n+sod(n) for n = 64528493 and 64528502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13194 + ... + 17410.

It is an arithmetic number, because the mean of its divisors is an integer number (6921738).

Almost surely, 2^64528534 is an apocalyptic number.

64528534 is a deficient number, since it is larger than the sum of its proper divisors (46219274).

64528534 is a wasteful number, since it uses less digits than its factorization.

64528534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319.

The product of its digits is 115200, while the sum is 37.

The square root of 64528534 is about 8032.9654549239. The cubic root of 64528534 is about 401.0980952087.

The spelling of 64528534 in words is "sixty-four million, five hundred twenty-eight thousand, five hundred thirty-four".