64534955 has 8 divisors (see below), whose sum is σ = 77499312. Its totient is φ = 51589728.

The previous prime is 64534949. The next prime is 64534957. The reversal of 64534955 is 55943546.

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 64534955 - 2⁶ = 64534891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64534957) 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, 4169 + ... + 12101.

It is an arithmetic number, because the mean of its divisors is an integer number (9687414).

Almost surely, 2^64534955 is an apocalyptic number.

64534955 is a deficient number, since it is larger than the sum of its proper divisors (12964357).

64534955 is a wasteful number, since it uses less digits than its factorization.

64534955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565.

The product of its digits is 324000, while the sum is 41.

The square root of 64534955 is about 8033.3651105872. The cubic root of 64534955 is about 401.1113987056. Note that the first 3 decimals are identical.

The spelling of 64534955 in words is "sixty-four million, five hundred thirty-four thousand, nine hundred fifty-five".