545401599 has 16 divisors (see below), whose sum is σ = 803457792. Its totient is φ = 327333248.

The previous prime is 545401567. The next prime is 545401607. The reversal of 545401599 is 995104545.

It is a cyclic number.

It is not a de Polignac number, because 545401599 - 2⁵ = 545401567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545401599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545401529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231309 + ... + 233654.

It is an arithmetic number, because the mean of its divisors is an integer number (50216112).

Almost surely, 2^545401599 is an apocalyptic number.

545401599 is a deficient number, since it is larger than the sum of its proper divisors (258056193).

545401599 is a wasteful number, since it uses less digits than its factorization.

545401599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465006.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 545401599 is about 23353.8347814658. The cubic root of 545401599 is about 817.0315029249.

The spelling of 545401599 in words is "five hundred forty-five million, four hundred one thousand, five hundred ninety-nine".