55145627 has 2 divisors, whose sum is σ = 55145628. Its totient is φ = 55145626.

The previous prime is 55145591. The next prime is 55145639. The reversal of 55145627 is 72654155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55145627 - 2¹⁰ = 55144603 is a prime.

It is not a weakly prime, because it can be changed into another prime (55145687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572813 + 27572814.

It is an arithmetic number, because the mean of its divisors is an integer number (27572814).

Almost surely, 2^55145627 is an apocalyptic number.

55145627 is a deficient number, since it is larger than the sum of its proper divisors (1).

55145627 is an equidigital number, since it uses as much as digits as its factorization.

55145627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 55145627 is about 7426.0101669739. The cubic root of 55145627 is about 380.6305942504.

The spelling of 55145627 in words is "fifty-five million, one hundred forty-five thousand, six hundred twenty-seven".