55270531 has 2 divisors, whose sum is σ = 55270532. Its totient is φ = 55270530.

The previous prime is 55270499. The next prime is 55270547. The reversal of 55270531 is 13507255.

55270531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55270531 - 2⁵ = 55270499 is a prime.

It is a super-2 number, since 2×55270531² = 6109663194043922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55270531.

It is not a weakly prime, because it can be changed into another prime (55270591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27635265 + 27635266.

It is an arithmetic number, because the mean of its divisors is an integer number (27635266).

Almost surely, 2^55270531 is an apocalyptic number.

55270531 is a deficient number, since it is larger than the sum of its proper divisors (1).

55270531 is an equidigital number, since it uses as much as digits as its factorization.

55270531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55270531 is about 7434.4153098949. The cubic root of 55270531 is about 380.9177517111.

Adding to 55270531 its reverse (13507255), we get a palindrome (68777786).

The spelling of 55270531 in words is "fifty-five million, two hundred seventy thousand, five hundred thirty-one".