653342251 has 4 divisors (see below), whose sum is σ = 653456512. Its totient is φ = 653227992.

The previous prime is 653342231. The next prime is 653342297. The reversal of 653342251 is 152243356.

It is a happy number.

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 653342251 - 2¹¹ = 653340203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653342201) 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, 48075 + ... + 60148.

It is an arithmetic number, because the mean of its divisors is an integer number (163364128).

Almost surely, 2^653342251 is an apocalyptic number.

653342251 is a deficient number, since it is larger than the sum of its proper divisors (114261).

653342251 is a wasteful number, since it uses less digits than its factorization.

653342251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114260.

The product of its digits is 21600, while the sum is 31.

The square root of 653342251 is about 25560.5604594265. The cubic root of 653342251 is about 867.7212798859.

It can be divided in two parts, 6533 and 42251, that added together give a palindrome (48784).

The spelling of 653342251 in words is "six hundred fifty-three million, three hundred forty-two thousand, two hundred fifty-one".