55872487 has 8 divisors (see below), whose sum is σ = 61128720. Its totient is φ = 50645760.

The previous prime is 55872461. The next prime is 55872491. The reversal of 55872487 is 78427855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55872487 - 2¹¹ = 55870439 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 (55872287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3312 + ... + 11077.

It is an arithmetic number, because the mean of its divisors is an integer number (7641090).

Almost surely, 2^55872487 is an apocalyptic number.

55872487 is a deficient number, since it is larger than the sum of its proper divisors (5256233).

55872487 is a wasteful number, since it uses less digits than its factorization.

55872487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753.

The product of its digits is 627200, while the sum is 46.

The square root of 55872487 is about 7474.7900973874. The cubic root of 55872487 is about 382.2956306403.

The spelling of 55872487 in words is "fifty-five million, eight hundred seventy-two thousand, four hundred eighty-seven".