64253071 has 4 divisors (see below), whose sum is σ = 64492200. Its totient is φ = 64013944.

The previous prime is 64253023. The next prime is 64253093. The reversal of 64253071 is 17035246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64253071 - 2⁷ = 64252943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64253171) 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, 119161 + ... + 119698.

It is an arithmetic number, because the mean of its divisors is an integer number (16123050).

Almost surely, 2^64253071 is an apocalyptic number.

64253071 is a deficient number, since it is larger than the sum of its proper divisors (239129).

64253071 is a wasteful number, since it uses less digits than its factorization.

64253071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239128.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 64253071 is about 8015.8013323685. The cubic root of 64253071 is about 400.5265378406.

The spelling of 64253071 in words is "sixty-four million, two hundred fifty-three thousand, seventy-one".