56439461 has 4 divisors (see below), whose sum is σ = 60780972. Its totient is φ = 52097952.

The previous prime is 56439451. The next prime is 56439469. The reversal of 56439461 is 16493465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21215236 + 35224225 = 4606^2 + 5935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56439461 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 (56439469) 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, 2170736 + ... + 2170761.

It is an arithmetic number, because the mean of its divisors is an integer number (15195243).

Almost surely, 2^56439461 is an apocalyptic number.

It is an amenable number.

56439461 is a deficient number, since it is larger than the sum of its proper divisors (4341511).

56439461 is a wasteful number, since it uses less digits than its factorization.

56439461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341510.

The product of its digits is 77760, while the sum is 38.

The square root of 56439461 is about 7512.6201155123. The cubic root of 56439461 is about 383.5844141258.

The spelling of 56439461 in words is "fifty-six million, four hundred thirty-nine thousand, four hundred sixty-one".