545954401 has 4 divisors (see below), whose sum is σ = 559270404. Its totient is φ = 532638400.

The previous prime is 545954399. The next prime is 545954413. The reversal of 545954401 is 104459545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9985600 + 535968801 = 3160^2 + 23151^2 .

It is a cyclic number.

It is not a de Polignac number, because 545954401 - 2¹ = 545954399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545954441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6657940 + ... + 6658021.

It is an arithmetic number, because the mean of its divisors is an integer number (139817601).

Almost surely, 2^545954401 is an apocalyptic number.

It is an amenable number.

545954401 is a deficient number, since it is larger than the sum of its proper divisors (13316003).

545954401 is a wasteful number, since it uses less digits than its factorization.

545954401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13316002.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 545954401 is about 23365.6671421982. The cubic root of 545954401 is about 817.3074489071.

It can be divided in two parts, 54595 and 4401, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 545954401 in words is "five hundred forty-five million, nine hundred fifty-four thousand, four hundred one".