55182031 has 2 divisors, whose sum is σ = 55182032. Its totient is φ = 55182030.

The previous prime is 55182007. The next prime is 55182073. The reversal of 55182031 is 13028155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55182031 - 2⁵ = 55181999 is a prime.

It is a super-2 number, since 2×55182031² = 6090113090569922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55181987 and 55182005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55182091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27591015 + 27591016.

It is an arithmetic number, because the mean of its divisors is an integer number (27591016).

Almost surely, 2^55182031 is an apocalyptic number.

55182031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55182031 is an equidigital number, since it uses as much as digits as its factorization.

55182031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 55182031 is about 7428.4608769246. The cubic root of 55182031 is about 380.7143327016.

The spelling of 55182031 in words is "fifty-five million, one hundred eighty-two thousand, thirty-one".