56919487 has 8 divisors (see below), whose sum is σ = 59044304. Its totient is φ = 54831168.

The previous prime is 56919479. The next prime is 56919517. The reversal of 56919487 is 78491965.

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

It is a cyclic number.

It is not a de Polignac number, because 56919487 - 2³ = 56919479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56919487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56919287) 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, 5928 + ... + 12205.

It is an arithmetic number, because the mean of its divisors is an integer number (7380538).

Almost surely, 2^56919487 is an apocalyptic number.

56919487 is a deficient number, since it is larger than the sum of its proper divisors (2124817).

56919487 is a wasteful number, since it uses less digits than its factorization.

56919487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18249.

The product of its digits is 544320, while the sum is 49.

The square root of 56919487 is about 7544.5004473457. The cubic root of 56919487 is about 384.6688263576.

The spelling of 56919487 in words is "fifty-six million, nine hundred nineteen thousand, four hundred eighty-seven".