55333031 has 8 divisors (see below), whose sum is σ = 59814720. Its totient is φ = 50883552.

The previous prime is 55333027. The next prime is 55333037. The reversal of 55333031 is 13033355.

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

It is a cyclic number.

It is not a de Polignac number, because 55333031 - 2² = 55333027 is a prime.

It is a super-2 number, since 2×55333031² = 6123488639293922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55332988 and 55333006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55333037) 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, 4415 + ... + 11408.

It is an arithmetic number, because the mean of its divisors is an integer number (7476840).

Almost surely, 2^55333031 is an apocalyptic number.

55333031 is a deficient number, since it is larger than the sum of its proper divisors (4481689).

55333031 is a wasteful number, since it uses less digits than its factorization.

55333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16105.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 55333031 is about 7438.6175462918. The cubic root of 55333031 is about 381.0612784144.

Adding to 55333031 its reverse (13033355), we get a palindrome (68366386).

The spelling of 55333031 in words is "fifty-five million, three hundred thirty-three thousand, thirty-one".