55134401 has 4 divisors (see below), whose sum is σ = 63010752. Its totient is φ = 47258052.

The previous prime is 55134389. The next prime is 55134413. The reversal of 55134401 is 10443155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10443155 = 5 ⋅2088631.

It is an interprime number because it is at equal distance from previous prime (55134389) and next prime (55134413).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55134401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55134601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938165 + ... + 3938178.

It is an arithmetic number, because the mean of its divisors is an integer number (15752688).

Almost surely, 2^55134401 is an apocalyptic number.

It is an amenable number.

55134401 is a deficient number, since it is larger than the sum of its proper divisors (7876351).

55134401 is an equidigital number, since it uses as much as digits as its factorization.

55134401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876350.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55134401 is about 7425.2542717405. The cubic root of 55134401 is about 380.6047641634.

Adding to 55134401 its reverse (10443155), we get a palindrome (65577556).

The spelling of 55134401 in words is "fifty-five million, one hundred thirty-four thousand, four hundred one".