420352253 has 4 divisors (see below), whose sum is σ = 420479040. Its totient is φ = 420225468.

The previous prime is 420352249. The next prime is 420352267. The reversal of 420352253 is 352253024.

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 420352253 - 2² = 420352249 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 (420352223) 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, 58283 + ... + 65096.

It is an arithmetic number, because the mean of its divisors is an integer number (105119760).

Almost surely, 2^420352253 is an apocalyptic number.

It is an amenable number.

420352253 is a deficient number, since it is larger than the sum of its proper divisors (126787).

420352253 is a wasteful number, since it uses less digits than its factorization.

420352253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126786.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 420352253 is about 20502.4938239230. The cubic root of 420352253 is about 749.0965435330.

The spelling of 420352253 in words is "four hundred twenty million, three hundred fifty-two thousand, two hundred fifty-three".