56461523 has 4 divisors (see below), whose sum is σ = 57662880. Its totient is φ = 55260168.

The previous prime is 56461513. The next prime is 56461529. The reversal of 56461523 is 32516465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56461523 - 2¹⁸ = 56199379 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 56461523.

It is not an unprimeable number, because it can be changed into a prime (56461529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600608 + ... + 600701.

It is an arithmetic number, because the mean of its divisors is an integer number (14415720).

Almost surely, 2^56461523 is an apocalyptic number.

56461523 is a deficient number, since it is larger than the sum of its proper divisors (1201357).

56461523 is a wasteful number, since it uses less digits than its factorization.

56461523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201356.

The product of its digits is 21600, while the sum is 32.

The square root of 56461523 is about 7514.0883013177. The cubic root of 56461523 is about 383.6343882441.

Adding to 56461523 its reverse (32516465), we get a palindrome (88977988).

The spelling of 56461523 in words is "fifty-six million, four hundred sixty-one thousand, five hundred twenty-three".