545802331 has 4 divisors (see below), whose sum is σ = 545972464. Its totient is φ = 545632200.

The previous prime is 545802329. The next prime is 545802343. The reversal of 545802331 is 133208545.

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

It is a cyclic number.

It is not a de Polignac number, because 545802331 - 2¹ = 545802329 is a prime.

It is a super-2 number, since 2×545802331² = 595800369050067122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545802293 and 545802302.

It is not an unprimeable number, because it can be changed into a prime (545802431) 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, 80160 + ... + 86701.

It is an arithmetic number, because the mean of its divisors is an integer number (136493116).

Almost surely, 2^545802331 is an apocalyptic number.

545802331 is a deficient number, since it is larger than the sum of its proper divisors (170133).

545802331 is a wasteful number, since it uses less digits than its factorization.

545802331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170132.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 545802331 is about 23362.4127820737. The cubic root of 545802331 is about 817.2315576574.

The spelling of 545802331 in words is "five hundred forty-five million, eight hundred two thousand, three hundred thirty-one".