55249627 has 2 divisors, whose sum is σ = 55249628. Its totient is φ = 55249626.

The previous prime is 55249619. The next prime is 55249633. The reversal of 55249627 is 72694255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55249627 - 2³ = 55249619 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55249627.

It is not a weakly prime, because it can be changed into another prime (55249637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27624813 + 27624814.

It is an arithmetic number, because the mean of its divisors is an integer number (27624814).

Almost surely, 2^55249627 is an apocalyptic number.

55249627 is a deficient number, since it is larger than the sum of its proper divisors (1).

55249627 is an equidigital number, since it uses as much as digits as its factorization.

55249627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 55249627 is about 7433.0092829217. The cubic root of 55249627 is about 380.8697230503.

It can be divided in two parts, 5524 and 9627, that added together give a palindrome (15151).

The spelling of 55249627 in words is "fifty-five million, two hundred forty-nine thousand, six hundred twenty-seven".