545515402 has 8 divisors (see below), whose sum is σ = 818392896. Its totient is φ = 272717772.

The previous prime is 545515393. The next prime is 545515409. The reversal of 545515402 is 204515545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (545515409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903 + ... + 33085.

It is an arithmetic number, because the mean of its divisors is an integer number (102299112).

Almost surely, 2^545515402 is an apocalyptic number.

545515402 is a deficient number, since it is larger than the sum of its proper divisors (272877494).

545515402 is a wasteful number, since it uses less digits than its factorization.

545515402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39932.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 545515402 is about 23356.2711493081. The cubic root of 545515402 is about 817.0883259888.

The spelling of 545515402 in words is "five hundred forty-five million, five hundred fifteen thousand, four hundred two".