55236375633 has 4 divisors (see below), whose sum is σ = 73648500848. Its totient is φ = 36824250420.

The previous prime is 55236375613. The next prime is 55236375637. The reversal of 55236375633 is 33657363255.

It is a happy number.

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 55236375633 - 2¹³ = 55236367441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55236375637) 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, 9206062603 + ... + 9206062608.

It is an arithmetic number, because the mean of its divisors is an integer number (18412125212).

Almost surely, 2^55236375633 is an apocalyptic number.

It is an amenable number.

55236375633 is a deficient number, since it is larger than the sum of its proper divisors (18412125215).

55236375633 is a wasteful number, since it uses less digits than its factorization.

55236375633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412125214.

The product of its digits is 5103000, while the sum is 48.

It can be divided in two parts, 552 and 36375633, that added together give a triangular number (36376185 = T₈₅₂₉).

The spelling of 55236375633 in words is "fifty-five billion, two hundred thirty-six million, three hundred seventy-five thousand, six hundred thirty-three".