55411145 has 4 divisors (see below), whose sum is σ = 66493380. Its totient is φ = 44328912.

The previous prime is 55411123. The next prime is 55411151. The reversal of 55411145 is 54111455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54111455 = 5 ⋅10822291.

It can be written as a sum of positive squares in 2 ways, for example, as 33779344 + 21631801 = 5812^2 + 4651^2 .

It is a cyclic number.

It is not a de Polignac number, because 55411145 - 2⁸ = 55410889 is a prime.

It is a super-2 number, since 2×55411145² = 6140789980422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5541110 + ... + 5541119.

It is an arithmetic number, because the mean of its divisors is an integer number (16623345).

Almost surely, 2^55411145 is an apocalyptic number.

It is an amenable number.

55411145 is a deficient number, since it is larger than the sum of its proper divisors (11082235).

55411145 is a wasteful number, since it uses less digits than its factorization.

55411145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11082234.

The product of its digits is 2000, while the sum is 26.

The square root of 55411145 is about 7443.8662669341. The cubic root of 55411145 is about 381.2405096625.

The spelling of 55411145 in words is "fifty-five million, four hundred eleven thousand, one hundred forty-five".