55636547 has 2 divisors, whose sum is σ = 55636548. Its totient is φ = 55636546.

The previous prime is 55636513. The next prime is 55636573. The reversal of 55636547 is 74563655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55636547 - 2²² = 51442243 is a prime.

It is not a weakly prime, because it can be changed into another prime (55636507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27818273 + 27818274.

It is an arithmetic number, because the mean of its divisors is an integer number (27818274).

Almost surely, 2^55636547 is an apocalyptic number.

55636547 is a deficient number, since it is larger than the sum of its proper divisors (1).

55636547 is an equidigital number, since it uses as much as digits as its factorization.

55636547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The square root of 55636547 is about 7458.9910175573. The cubic root of 55636547 is about 381.7567482707.

The spelling of 55636547 in words is "fifty-five million, six hundred thirty-six thousand, five hundred forty-seven".