56426487 has 8 divisors (see below), whose sum is σ = 81022704. Its totient is φ = 34723968.

The previous prime is 56426483. The next prime is 56426533. The reversal of 56426487 is 78462465.

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

It is not a de Polignac number, because 56426487 - 2² = 56426483 is a prime.

It is a super-2 number, since 2×56426487² = 6367896870322338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56426483) 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, 723378 + ... + 723455.

It is an arithmetic number, because the mean of its divisors is an integer number (10127838).

Almost surely, 2^56426487 is an apocalyptic number.

56426487 is a deficient number, since it is larger than the sum of its proper divisors (24596217).

56426487 is a wasteful number, since it uses less digits than its factorization.

56426487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446849.

The product of its digits is 322560, while the sum is 42.

The square root of 56426487 is about 7511.7565855131. The cubic root of 56426487 is about 383.5550197654. Note that the first 3 decimals are identical.

The spelling of 56426487 in words is "fifty-six million, four hundred twenty-six thousand, four hundred eighty-seven".