545302405 has 16 divisors (see below), whose sum is σ = 661523760. Its totient is φ = 431484928.

The previous prime is 545302397. The next prime is 545302463. The reversal of 545302405 is 504203545.

It can be written as a sum of positive squares in 8 ways, for example, as 16394401 + 528908004 = 4049^2 + 22998^2 .

It is a cyclic number.

It is not a de Polignac number, because 545302405 - 2³ = 545302397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456489 + ... + 457681.

It is an arithmetic number, because the mean of its divisors is an integer number (41345235).

Almost surely, 2^545302405 is an apocalyptic number.

It is an amenable number.

545302405 is a deficient number, since it is larger than the sum of its proper divisors (116221355).

545302405 is a wasteful number, since it uses less digits than its factorization.

545302405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 545302405 is about 23351.7109651520. The cubic root of 545302405 is about 816.9819678442.

The spelling of 545302405 in words is "five hundred forty-five million, three hundred two thousand, four hundred five".