64550434 has 16 divisors (see below), whose sum is σ = 104626368. Its totient is φ = 29691792.

The previous prime is 64550363. The next prime is 64550461. The reversal of 64550434 is 43405546.

It is a junction number, because it is equal to n+sod(n) for n = 64550396 and 64550405.

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, 3939 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (6539148).

Almost surely, 2^64550434 is an apocalyptic number.

64550434 is a deficient number, since it is larger than the sum of its proper divisors (40075934).

64550434 is a wasteful number, since it uses less digits than its factorization.

64550434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 64550434 is about 8034.3284722496. The cubic root of 64550434 is about 401.1434656013.

The spelling of 64550434 in words is "sixty-four million, five hundred fifty thousand, four hundred thirty-four".