56147405 has 8 divisors (see below), whose sum is σ = 68648472. Its totient is φ = 44070208.

The previous prime is 56147363. The next prime is 56147411. The reversal of 56147405 is 50474165.

It can be written as a sum of positive squares in 4 ways, for example, as 5410276 + 50737129 = 2326^2 + 7123^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56147405 - 2¹⁴ = 56131021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105674 + ... + 106203.

It is an arithmetic number, because the mean of its divisors is an integer number (8581059).

Almost surely, 2^56147405 is an apocalyptic number.

It is an amenable number.

56147405 is a deficient number, since it is larger than the sum of its proper divisors (12501067).

56147405 is a wasteful number, since it uses less digits than its factorization.

56147405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211935.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 56147405 is about 7493.1572117499. The cubic root of 56147405 is about 382.9216277137.

The spelling of 56147405 in words is "fifty-six million, one hundred forty-seven thousand, four hundred five".