545155404 has 12 divisors (see below), whose sum is σ = 1272029304. Its totient is φ = 181718464.

The previous prime is 545155399. The next prime is 545155409. The reversal of 545155404 is 404551545.

It is an interprime number because it is at equal distance from previous prime (545155399) and next prime (545155409).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (545155409) 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, 22714797 + ... + 22714820.

It is an arithmetic number, because the mean of its divisors is an integer number (106002442).

Almost surely, 2^545155404 is an apocalyptic number.

It is an amenable number.

545155404 is an abundant number, since it is smaller than the sum of its proper divisors (726873900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545155404 is a wasteful number, since it uses less digits than its factorization.

545155404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45429624 (or 45429622 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 545155404 is about 23348.5632106132. The cubic root of 545155404 is about 816.9085480569.

The spelling of 545155404 in words is "five hundred forty-five million, one hundred fifty-five thousand, four hundred four".