55647379 has 2 divisors, whose sum is σ = 55647380. Its totient is φ = 55647378.

The previous prime is 55647323. The next prime is 55647407. The reversal of 55647379 is 97374655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55647379 - 2²⁵ = 22092947 is a prime.

It is not a weakly prime, because it can be changed into another prime (55647079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27823689 + 27823690.

It is an arithmetic number, because the mean of its divisors is an integer number (27823690).

Almost surely, 2^55647379 is an apocalyptic number.

55647379 is a deficient number, since it is larger than the sum of its proper divisors (1).

55647379 is an equidigital number, since it uses as much as digits as its factorization.

55647379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 46.

The square root of 55647379 is about 7459.7170857882. The cubic root of 55647379 is about 381.7815216795.

The spelling of 55647379 in words is "fifty-five million, six hundred forty-seven thousand, three hundred seventy-nine".