55140410 has 16 divisors (see below), whose sum is σ = 106887816. Its totient is φ = 20359488.

The previous prime is 55140403. The next prime is 55140431. The reversal of 55140410 is 1404155.

It can be written as a sum of positive squares in 4 ways, for example, as 42601729 + 12538681 = 6527^2 + 3541^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 211949 + ... + 212208.

Almost surely, 2^55140410 is an apocalyptic number.

55140410 is a deficient number, since it is larger than the sum of its proper divisors (51747406).

55140410 is a wasteful number, since it uses less digits than its factorization.

55140410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424177.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55140410 is about 7425.6588933239. The cubic root of 55140410 is about 380.6185908058.

Adding to 55140410 its reverse (1404155), we get a palindrome (56544565).

It can be divided in two parts, 5 and 5140410, that added together give a palindrome (5140415).

The spelling of 55140410 in words is "fifty-five million, one hundred forty thousand, four hundred ten".