64275553 has 4 divisors (see below), whose sum is σ = 64378048. Its totient is φ = 64173060.

The previous prime is 64275529. The next prime is 64275557. The reversal of 64275553 is 35557246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64275553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64275557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50301 + ... + 51562.

It is an arithmetic number, because the mean of its divisors is an integer number (16094512).

Almost surely, 2^64275553 is an apocalyptic number.

It is an amenable number.

64275553 is a deficient number, since it is larger than the sum of its proper divisors (102495).

64275553 is a wasteful number, since it uses less digits than its factorization.

64275553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102494.

The product of its digits is 126000, while the sum is 37.

The square root of 64275553 is about 8017.2035648348. The cubic root of 64275553 is about 400.5732468277.

The spelling of 64275553 in words is "sixty-four million, two hundred seventy-five thousand, five hundred fifty-three".