55412156533 has 4 divisors (see below), whose sum is σ = 56763672588. Its totient is φ = 54060640480.

The previous prime is 55412156519. The next prime is 55412156563. The reversal of 55412156533 is 33565121455.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25249845604 + 30162310929 = 158902^2 + 173673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55412156533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55412156563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675757966 + ... + 675758047.

It is an arithmetic number, because the mean of its divisors is an integer number (14190918147).

Almost surely, 2^55412156533 is an apocalyptic number.

It is an amenable number.

55412156533 is a deficient number, since it is larger than the sum of its proper divisors (1351516055).

55412156533 is a wasteful number, since it uses less digits than its factorization.

55412156533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351516054.

The product of its digits is 270000, while the sum is 40.

Adding to 55412156533 its reverse (33565121455), we get a palindrome (88977277988).

The spelling of 55412156533 in words is "fifty-five billion, four hundred twelve million, one hundred fifty-six thousand, five hundred thirty-three".