545453042331 has 4 divisors (see below), whose sum is σ = 727270723112. Its totient is φ = 363635361552.

The previous prime is 545453042279. The next prime is 545453042363. The reversal of 545453042331 is 133240354545.

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

It is not a de Polignac number, because 545453042331 - 2²² = 545448848027 is a prime.

It is a super-2 number, since 2×545453042331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545453042331.

It is not an unprimeable number, because it can be changed into a prime (545453042531) 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, 90908840386 + ... + 90908840391.

It is an arithmetic number, because the mean of its divisors is an integer number (181817680778).

Almost surely, 2^545453042331 is an apocalyptic number.

545453042331 is a deficient number, since it is larger than the sum of its proper divisors (181817680781).

545453042331 is a wasteful number, since it uses less digits than its factorization.

545453042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181817680780.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 545453042331 its reverse (133240354545), we get a palindrome (678693396876).

The spelling of 545453042331 in words is "five hundred forty-five billion, four hundred fifty-three million, forty-two thousand, three hundred thirty-one".