64862253 has 6 divisors (see below), whose sum is σ = 93689934. Its totient is φ = 43241496.

The previous prime is 64862243. The next prime is 64862267. The reversal of 64862253 is 35226846.

64862253 is a `hidden beast` number, since 648 + 6 + 2 + 2 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48191364 + 16670889 = 6942^2 + 4083^2 .

It is not a de Polignac number, because 64862253 - 2¹⁰ = 64861229 is a prime.

It is a super-2 number, since 2×64862253² = 8414223728472018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64862243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3603450 + ... + 3603467.

It is an arithmetic number, because the mean of its divisors is an integer number (15614989).

Almost surely, 2^64862253 is an apocalyptic number.

It is an amenable number.

64862253 is a deficient number, since it is larger than the sum of its proper divisors (28827681).

64862253 is a wasteful number, since it uses less digits than its factorization.

64862253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206923 (or 7206920 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 64862253 is about 8053.7105113109. The cubic root of 64862253 is about 401.7883529850.

The spelling of 64862253 in words is "sixty-four million, eight hundred sixty-two thousand, two hundred fifty-three".