55353121031 has 8 divisors (see below), whose sum is σ = 63117586224. Its totient is φ = 48089589120.

The previous prime is 55353120973. The next prime is 55353121039. The reversal of 55353121031 is 13012135355.

It is a happy number.

55353121031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55353121031 - 2⁶ = 55353120967 is a prime.

It is a super-2 number, since 2×55353121031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55353120985 and 55353121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55353121039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125233085 + ... + 125233526.

It is an arithmetic number, because the mean of its divisors is an integer number (7889698278).

Almost surely, 2^55353121031 is an apocalyptic number.

55353121031 is a deficient number, since it is larger than the sum of its proper divisors (7764465193).

55353121031 is a wasteful number, since it uses less digits than its factorization.

55353121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250466641.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 55353121031 its reverse (13012135355), we get a palindrome (68365256386).

The spelling of 55353121031 in words is "fifty-five billion, three hundred fifty-three million, one hundred twenty-one thousand, thirty-one".