55353601 has 4 divisors (see below), whose sum is σ = 55659604. Its totient is φ = 55047600.

The previous prime is 55353583. The next prime is 55353607. The reversal of 55353601 is 10635355.

It is a happy number.

It is a Cunningham number, because it is equal to 7440²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10635355 = 5 ⋅2127071.

It can be written as a sum of positive squares in 2 ways, for example, as 608400 + 54745201 = 780^2 + 7399^2 .

It is a cyclic number.

It is not a de Polignac number, because 55353601 - 2²³ = 46964993 is a prime.

It is a super-2 number, since 2×55353601² = 6128042287334402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55353601.

It is not an unprimeable number, because it can be changed into a prime (55353607) 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, 152730 + ... + 153091.

It is an arithmetic number, because the mean of its divisors is an integer number (13914901).

Almost surely, 2^55353601 is an apocalyptic number.

It is an amenable number.

55353601 is a deficient number, since it is larger than the sum of its proper divisors (306003).

55353601 is a wasteful number, since it uses less digits than its factorization.

55353601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306002.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55353601 is about 7440.0000672043. Note that the first 4 decimals coincide. The cubic root of 55353601 is about 381.1084922832.

Adding to 55353601 its reverse (10635355), we get a palindrome (65988956).

The spelling of 55353601 in words is "fifty-five million, three hundred fifty-three thousand, six hundred one".