64842253 has 4 divisors (see below), whose sum is σ = 74105440. Its totient is φ = 55579068.

The previous prime is 64842227. The next prime is 64842257. The reversal of 64842253 is 35224846.

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 not a de Polignac number, because 64842253 - 2⁹ = 64841741 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 (64842257) 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, 4631583 + ... + 4631596.

It is an arithmetic number, because the mean of its divisors is an integer number (18526360).

Almost surely, 2^64842253 is an apocalyptic number.

It is an amenable number.

64842253 is a deficient number, since it is larger than the sum of its proper divisors (9263187).

64842253 is an equidigital number, since it uses as much as digits as its factorization.

64842253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9263186.

The product of its digits is 46080, while the sum is 34.

The square root of 64842253 is about 8052.4687518798. The cubic root of 64842253 is about 401.7470521628.

The spelling of 64842253 in words is "sixty-four million, eight hundred forty-two thousand, two hundred fifty-three".