355673565 has 64 divisors (see below), whose sum is σ = 697697280. Its totient is φ = 170795520.

The previous prime is 355673519. The next prime is 355673567. The reversal of 355673565 is 565376553.

It is a happy number.

355673565 is a `hidden beast` number, since 3 + 556 + 7 + 35 + 65 = 666.

It is not a de Polignac number, because 355673565 - 2⁸ = 355673309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 355673565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355673567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69484 + ... + 74426.

It is an arithmetic number, because the mean of its divisors is an integer number (10901520).

Almost surely, 2^355673565 is an apocalyptic number.

It is an amenable number.

355673565 is a deficient number, since it is larger than the sum of its proper divisors (342023715).

355673565 is a wasteful number, since it uses less digits than its factorization.

355673565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 5005 counting only the distinct ones).

The product of its digits is 1417500, while the sum is 45.

The square root of 355673565 is about 18859.3097699783. The cubic root of 355673565 is about 708.5174147943.

The spelling of 355673565 in words is "three hundred fifty-five million, six hundred seventy-three thousand, five hundred sixty-five".