55076121 has 6 divisors (see below), whose sum is σ = 79554410. Its totient is φ = 36717408.

The previous prime is 55076111. The next prime is 55076149. The reversal of 55076121 is 12167055.

It can be written as a sum of positive squares in only one way, i.e., 52707600 + 2368521 = 7260^2 + 1539^2 .

It is not a de Polignac number, because 55076121 - 2⁹ = 55075609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55076101) 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 5 ways as a sum of consecutive naturals, for example, 3059776 + ... + 3059793.

Almost surely, 2^55076121 is an apocalyptic number.

It is an amenable number.

55076121 is a deficient number, since it is larger than the sum of its proper divisors (24478289).

55076121 is a wasteful number, since it uses less digits than its factorization.

55076121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119575 (or 6119572 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 55076121 is about 7421.3287893746. The cubic root of 55076121 is about 380.4706103769.

It can be divided in two parts, 5507 and 6121, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 55076121 in words is "fifty-five million, seventy-six thousand, one hundred twenty-one".