54140404 has 6 divisors (see below), whose sum is σ = 94745714. Its totient is φ = 27070200.

The previous prime is 54140399. The next prime is 54140407. The reversal of 54140404 is 40404145.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 20268004 = 5820^2 + 4502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54140407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6767547 + ... + 6767554.

Almost surely, 2^54140404 is an apocalyptic number.

It is an amenable number.

54140404 is a deficient number, since it is larger than the sum of its proper divisors (40605310).

54140404 is a wasteful number, since it uses less digits than its factorization.

54140404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535105 (or 13535103 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 54140404 is about 7358.0163087615. The cubic root of 54140404 is about 378.3036202652.

Adding to 54140404 its reverse (40404145), we get a palindrome (94544549).

The spelling of 54140404 in words is "fifty-four million, one hundred forty thousand, four hundred four".