53453251 has 4 divisors (see below), whose sum is σ = 56266600. Its totient is φ = 50639904.

The previous prime is 53453243. The next prime is 53453291. The reversal of 53453251 is 15235435.

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 53453251 - 2³ = 53453243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53453291) 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, 1406646 + ... + 1406683.

It is an arithmetic number, because the mean of its divisors is an integer number (14066650).

Almost surely, 2^53453251 is an apocalyptic number.

53453251 is a deficient number, since it is larger than the sum of its proper divisors (2813349).

53453251 is a wasteful number, since it uses less digits than its factorization.

53453251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813348.

The product of its digits is 9000, while the sum is 28.

The square root of 53453251 is about 7311.1730248983. The cubic root of 53453251 is about 376.6963174856.

Adding to 53453251 its reverse (15235435), we get a palindrome (68688686).

The spelling of 53453251 in words is "fifty-three million, four hundred fifty-three thousand, two hundred fifty-one".