420411253 has 8 divisors (see below), whose sum is σ = 432555480. Its totient is φ = 408357120.

The previous prime is 420411247. The next prime is 420411259. The reversal of 420411253 is 352114024.

It is an interprime number because it is at equal distance from previous prime (420411247) and next prime (420411259).

It can be written as a sum of positive squares in 4 ways, for example, as 169442289 + 250968964 = 13017^2 + 15842^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420411253 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 (420411259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13000 + ... + 31777.

It is an arithmetic number, because the mean of its divisors is an integer number (54069435).

Almost surely, 2^420411253 is an apocalyptic number.

It is an amenable number.

420411253 is a deficient number, since it is larger than the sum of its proper divisors (12144227).

420411253 is a wasteful number, since it uses less digits than its factorization.

420411253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45047.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420411253 is about 20503.9326227921. The cubic root of 420411253 is about 749.1315892421.

Adding to 420411253 its reverse (352114024), we get a palindrome (772525277).

The spelling of 420411253 in words is "four hundred twenty million, four hundred eleven thousand, two hundred fifty-three".