451320253 has 4 divisors (see below), whose sum is σ = 451981728. Its totient is φ = 450658780.

The previous prime is 451320223. The next prime is 451320257. The reversal of 451320253 is 352023154.

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 a de Polignac number, because none of the positive numbers 2^k-451320253 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 (451320257) 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, 329713 + ... + 331078.

It is an arithmetic number, because the mean of its divisors is an integer number (112995432).

Almost surely, 2^451320253 is an apocalyptic number.

It is an amenable number.

451320253 is a deficient number, since it is larger than the sum of its proper divisors (661475).

451320253 is an equidigital number, since it uses as much as digits as its factorization.

451320253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661474.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 451320253 is about 21244.2993059315. The cubic root of 451320253 is about 767.0581246213.

The spelling of 451320253 in words is "four hundred fifty-one million, three hundred twenty thousand, two hundred fifty-three".