56145634 has 4 divisors (see below), whose sum is σ = 84218454. Its totient is φ = 28072816.

The previous prime is 56145629. The next prime is 56145643. The reversal of 56145634 is 43654165.

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

It can be written as a sum of positive squares in only one way, i.e., 56025225 + 120409 = 7485^2 + 347^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56145634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14036407 + ... + 14036410.

Almost surely, 2^56145634 is an apocalyptic number.

56145634 is a deficient number, since it is larger than the sum of its proper divisors (28072820).

56145634 is a wasteful number, since it uses less digits than its factorization.

56145634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28072819.

The product of its digits is 43200, while the sum is 34.

The square root of 56145634 is about 7493.0390363323. The cubic root of 56145634 is about 382.9176016366.

Adding to 56145634 its reverse (43654165), we get a palindrome (99799799).

The spelling of 56145634 in words is "fifty-six million, one hundred forty-five thousand, six hundred thirty-four".