56454487 has 8 divisors (see below), whose sum is σ = 57822336. Its totient is φ = 55097952.

The previous prime is 56454469. The next prime is 56454493. The reversal of 56454487 is 78445465.

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

It is a de Polignac number, because none of the positive numbers 2^k-56454487 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 (56454407) 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 7 ways as a sum of consecutive naturals, for example, 7738 + ... + 13144.

It is an arithmetic number, because the mean of its divisors is an integer number (7227792).

Almost surely, 2^56454487 is an apocalyptic number.

56454487 is a deficient number, since it is larger than the sum of its proper divisors (1367849).

56454487 is a wasteful number, since it uses less digits than its factorization.

56454487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657.

The product of its digits is 537600, while the sum is 43.

The square root of 56454487 is about 7513.6200995259. The cubic root of 56454487 is about 383.6184519419.

The spelling of 56454487 in words is "fifty-six million, four hundred fifty-four thousand, four hundred eighty-seven".