55007487 has 6 divisors (see below), whose sum is σ = 79455272. Its totient is φ = 36671652.

The previous prime is 55007479. The next prime is 55007501. The reversal of 55007487 is 78470055.

55007487 is a `hidden beast` number, since 5 + 500 + 74 + 87 = 666.

It is not a de Polignac number, because 55007487 - 2³ = 55007479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55007987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3055963 + ... + 3055980.

Almost surely, 2^55007487 is an apocalyptic number.

55007487 is a deficient number, since it is larger than the sum of its proper divisors (24447785).

55007487 is a wasteful number, since it uses less digits than its factorization.

55007487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111949 (or 6111946 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 55007487 is about 7416.7032433555. The cubic root of 55007487 is about 380.3125014781.

The spelling of 55007487 in words is "fifty-five million, seven thousand, four hundred eighty-seven".