54040402 has 16 divisors (see below), whose sum is σ = 87521112. Its totient is φ = 24877440.

The previous prime is 54040397. The next prime is 54040411. The reversal of 54040402 is 20404045.

54040402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16818201 + 37222201 = 4101^2 + 6101^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54040402.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8478 + ... + 13414.

Almost surely, 2^54040402 is an apocalyptic number.

54040402 is a deficient number, since it is larger than the sum of its proper divisors (33480710).

54040402 is a wasteful number, since it uses less digits than its factorization.

54040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 54040402 is about 7351.2177222553. The cubic root of 54040402 is about 378.0705568953.

Adding to 54040402 its reverse (20404045), we get a palindrome (74444447).

The spelling of 54040402 in words is "fifty-four million, forty thousand, four hundred two".