545342554 has 4 divisors (see below), whose sum is σ = 818013834. Its totient is φ = 272671276.

The previous prime is 545342521. The next prime is 545342557. The reversal of 545342554 is 455243545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455243545 = 5 ⋅91048709.

It can be written as a sum of positive squares in only one way, i.e., 294911929 + 250430625 = 17173^2 + 15825^2 .

It is not an unprimeable number, because it can be changed into a prime (545342557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136335637 + ... + 136335640.

Almost surely, 2^545342554 is an apocalyptic number.

545342554 is a deficient number, since it is larger than the sum of its proper divisors (272671280).

545342554 is a wasteful number, since it uses less digits than its factorization.

545342554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272671279.

The product of its digits is 240000, while the sum is 37.

The square root of 545342554 is about 23352.5706079652. The cubic root of 545342554 is about 817.0020180058.

Subtracting from 545342554 its reverse (455243545), we obtain a palindrome (90099009).

The spelling of 545342554 in words is "five hundred forty-five million, three hundred forty-two thousand, five hundred fifty-four".