54989587 has 2 divisors, whose sum is σ = 54989588. Its totient is φ = 54989586.

The previous prime is 54989563. The next prime is 54989617. The reversal of 54989587 is 78598945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54989587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54989507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27494793 + 27494794.

It is an arithmetic number, because the mean of its divisors is an integer number (27494794).

Almost surely, 2^54989587 is an apocalyptic number.

54989587 is a deficient number, since it is larger than the sum of its proper divisors (1).

54989587 is an equidigital number, since it uses as much as digits as its factorization.

54989587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 54989587 is about 7415.4964095467. The cubic root of 54989587 is about 380.2712444741.

The spelling of 54989587 in words is "fifty-four million, nine hundred eighty-nine thousand, five hundred eighty-seven".