54206987 has 2 divisors, whose sum is σ = 54206988. Its totient is φ = 54206986.

The previous prime is 54206959. The next prime is 54207011. The reversal of 54206987 is 78960245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54206987 - 2⁸ = 54206731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54206917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27103493 + 27103494.

It is an arithmetic number, because the mean of its divisors is an integer number (27103494).

Almost surely, 2^54206987 is an apocalyptic number.

54206987 is a deficient number, since it is larger than the sum of its proper divisors (1).

54206987 is an equidigital number, since it uses as much as digits as its factorization.

54206987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 54206987 is about 7362.5394396227. The cubic root of 54206987 is about 378.4586386330.

The spelling of 54206987 in words is "fifty-four million, two hundred six thousand, nine hundred eighty-seven".