55013983 has 2 divisors, whose sum is σ = 55013984. Its totient is φ = 55013982.

The previous prime is 55013971. The next prime is 55014049. The reversal of 55013983 is 38931055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55013983 - 2⁹ = 55013471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55013183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27506991 + 27506992.

It is an arithmetic number, because the mean of its divisors is an integer number (27506992).

Almost surely, 2^55013983 is an apocalyptic number.

55013983 is a deficient number, since it is larger than the sum of its proper divisors (1).

55013983 is an equidigital number, since it uses as much as digits as its factorization.

55013983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 55013983 is about 7417.1411608517. The cubic root of 55013983 is about 380.3274716388.

The spelling of 55013983 in words is "fifty-five million, thirteen thousand, nine hundred eighty-three".