55153641 has 4 divisors (see below), whose sum is σ = 73538192. Its totient is φ = 36769092.

The previous prime is 55153639. The next prime is 55153667. The reversal of 55153641 is 14635155.

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.

It is not a de Polignac number, because 55153641 - 2¹ = 55153639 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55153599 and 55153608.

It is not an unprimeable number, because it can be changed into a prime (55153601) 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, 9192271 + ... + 9192276.

It is an arithmetic number, because the mean of its divisors is an integer number (18384548).

Almost surely, 2^55153641 is an apocalyptic number.

It is an amenable number.

55153641 is a deficient number, since it is larger than the sum of its proper divisors (18384551).

55153641 is a wasteful number, since it uses less digits than its factorization.

55153641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384550.

The product of its digits is 9000, while the sum is 30.

The square root of 55153641 is about 7426.5497372602. The cubic root of 55153641 is about 380.6490316496.

Adding to 55153641 its reverse (14635155), we get a palindrome (69788796).

The spelling of 55153641 in words is "fifty-five million, one hundred fifty-three thousand, six hundred forty-one".