55263533 has 16 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 47013696.

The previous prime is 55263521. The next prime is 55263539. The reversal of 55263533 is 33536255.

It is a cyclic number.

It is not a de Polignac number, because 55263533 - 2¹² = 55259437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55263533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55263539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6116 + ... + 12162.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 2^55263533 is an apocalyptic number.

It is an amenable number.

55263533 is a deficient number, since it is larger than the sum of its proper divisors (9087187).

55263533 is a wasteful number, since it uses less digits than its factorization.

55263533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116.

The product of its digits is 40500, while the sum is 32.

The square root of 55263533 is about 7433.9446460140. The cubic root of 55263533 is about 380.9016745787.

Adding to 55263533 its reverse (33536255), we get a palindrome (88799788).

The spelling of 55263533 in words is "fifty-five million, two hundred sixty-three thousand, five hundred thirty-three".