55849487 has 2 divisors, whose sum is σ = 55849488. Its totient is φ = 55849486.

The previous prime is 55849433. The next prime is 55849499. The reversal of 55849487 is 78494855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55849487 - 2⁸ = 55849231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55849427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27924743 + 27924744.

It is an arithmetic number, because the mean of its divisors is an integer number (27924744).

Almost surely, 2^55849487 is an apocalyptic number.

55849487 is a deficient number, since it is larger than the sum of its proper divisors (1).

55849487 is an equidigital number, since it uses as much as digits as its factorization.

55849487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The square root of 55849487 is about 7473.2514342821. The cubic root of 55849487 is about 382.2431659015.

The spelling of 55849487 in words is "fifty-five million, eight hundred forty-nine thousand, four hundred eighty-seven".