45855487 has 2 divisors, whose sum is σ = 45855488. Its totient is φ = 45855486.

The previous prime is 45855473. The next prime is 45855521. The reversal of 45855487 is 78455854.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45855487 - 2¹¹ = 45853439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45855427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22927743 + 22927744.

It is an arithmetic number, because the mean of its divisors is an integer number (22927744).

Almost surely, 2^45855487 is an apocalyptic number.

45855487 is a deficient number, since it is larger than the sum of its proper divisors (1).

45855487 is an equidigital number, since it uses as much as digits as its factorization.

45855487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896000, while the sum is 46.

The square root of 45855487 is about 6771.6679629173. The cubic root of 45855487 is about 357.9291782754.

It can be divided in two parts, 458 and 55487, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 45855487 in words is "forty-five million, eight hundred fifty-five thousand, four hundred eighty-seven".