55633351 has 4 divisors (see below), whose sum is σ = 56990304. Its totient is φ = 54276400.

The previous prime is 55633337. The next prime is 55633381. The reversal of 55633351 is 15333655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15333655 = 5 ⋅3066731.

It is a cyclic number.

It is not a de Polignac number, because 55633351 - 2⁹ = 55632839 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55633321) 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, 678415 + ... + 678496.

It is an arithmetic number, because the mean of its divisors is an integer number (14247576).

Almost surely, 2^55633351 is an apocalyptic number.

55633351 is a deficient number, since it is larger than the sum of its proper divisors (1356953).

55633351 is a wasteful number, since it uses less digits than its factorization.

55633351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356952.

The product of its digits is 20250, while the sum is 31.

The square root of 55633351 is about 7458.7767763890. The cubic root of 55633351 is about 381.7494382201.

The spelling of 55633351 in words is "fifty-five million, six hundred thirty-three thousand, three hundred fifty-one".