56735491 has 4 divisors (see below), whose sum is σ = 57143800. Its totient is φ = 56327184.

The previous prime is 56735489. The next prime is 56735507. The reversal of 56735491 is 19453765.

56735491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19453765 = 5 ⋅3890753.

It is a cyclic number.

It is not a de Polignac number, because 56735491 - 2¹ = 56735489 is a prime.

It is a super-2 number, since 2×56735491² = 6437831878022162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56735401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203946 + ... + 204223.

It is an arithmetic number, because the mean of its divisors is an integer number (14285950).

Almost surely, 2^56735491 is an apocalyptic number.

56735491 is a deficient number, since it is larger than the sum of its proper divisors (408309).

56735491 is a wasteful number, since it uses less digits than its factorization.

56735491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408308.

The product of its digits is 113400, while the sum is 40.

The square root of 56735491 is about 7532.2965289479. The cubic root of 56735491 is about 384.2538898059.

The spelling of 56735491 in words is "fifty-six million, seven hundred thirty-five thousand, four hundred ninety-one".