420250753 has 4 divisors (see below), whose sum is σ = 452577748. Its totient is φ = 387923760.

The previous prime is 420250741. The next prime is 420250757. The reversal of 420250753 is 357052024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169598529 + 250652224 = 13023^2 + 15832^2 .

It is a cyclic number.

It is not a de Polignac number, because 420250753 - 2⁹ = 420250241 is a prime.

It is a super-3 number, since 3×420250753³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420250757) 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, 16163478 + ... + 16163503.

It is an arithmetic number, because the mean of its divisors is an integer number (113144437).

Almost surely, 2^420250753 is an apocalyptic number.

It is an amenable number.

420250753 is a deficient number, since it is larger than the sum of its proper divisors (32326995).

420250753 is a wasteful number, since it uses less digits than its factorization.

420250753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32326994.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 420250753 is about 20500.0183658454. The cubic root of 420250753 is about 749.0362453590.

The spelling of 420250753 in words is "four hundred twenty million, two hundred fifty thousand, seven hundred fifty-three".