55429547 has 2 divisors, whose sum is σ = 55429548. Its totient is φ = 55429546.

The previous prime is 55429529. The next prime is 55429559. The reversal of 55429547 is 74592455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55429547 - 2²⁰ = 54380971 is a prime.

It is not a weakly prime, because it can be changed into another prime (55429567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27714773 + 27714774.

It is an arithmetic number, because the mean of its divisors is an integer number (27714774).

Almost surely, 2^55429547 is an apocalyptic number.

55429547 is a deficient number, since it is larger than the sum of its proper divisors (1).

55429547 is an equidigital number, since it uses as much as digits as its factorization.

55429547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The square root of 55429547 is about 7445.1022155508. The cubic root of 55429547 is about 381.2827082213.

The spelling of 55429547 in words is "fifty-five million, four hundred twenty-nine thousand, five hundred forty-seven".