64361255 has 24 divisors (see below), whose sum is σ = 90197712. Its totient is φ = 43959552.

The previous prime is 64361207. The next prime is 64361257. The reversal of 64361255 is 55216346.

It is not a de Polignac number, because 64361255 - 2⁶ = 64361191 is a prime.

It is a super-2 number, since 2×64361255² = 8284742290350050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64361257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108239 + ... + 108831.

It is an arithmetic number, because the mean of its divisors is an integer number (3758238).

Almost surely, 2^64361255 is an apocalyptic number.

64361255 is a deficient number, since it is larger than the sum of its proper divisors (25836457).

64361255 is a wasteful number, since it uses less digits than its factorization.

64361255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1048 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 64361255 is about 8022.5466654922. The cubic root of 64361255 is about 400.7512029356.

The spelling of 64361255 in words is "sixty-four million, three hundred sixty-one thousand, two hundred fifty-five".