355220253 has 12 divisors (see below), whose sum is σ = 543278268. Its totient is φ = 222883200.

The previous prime is 355220251. The next prime is 355220273. The reversal of 355220253 is 352022553.

It can be written as a sum of positive squares in 2 ways, for example, as 270174969 + 85045284 = 16437^2 + 9222^2 .

It is not a de Polignac number, because 355220253 - 2¹ = 355220251 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355220251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1160698 + ... + 1161003.

It is an arithmetic number, because the mean of its divisors is an integer number (45273189).

Almost surely, 2^355220253 is an apocalyptic number.

It is an amenable number.

355220253 is a deficient number, since it is larger than the sum of its proper divisors (188058015).

355220253 is a wasteful number, since it uses less digits than its factorization.

355220253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321724 (or 2321721 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 355220253 is about 18847.2876828471. The cubic root of 355220253 is about 708.2162809980.

The spelling of 355220253 in words is "three hundred fifty-five million, two hundred twenty thousand, two hundred fifty-three".