56061511 has 8 divisors (see below), whose sum is σ = 63817344. Its totient is φ = 48748920.

The previous prime is 56061497. The next prime is 56061517. The reversal of 56061511 is 11516065.

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

It is a de Polignac number, because none of the positive numbers 2^k-56061511 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 (56061517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110541 + ... + 111046.

It is an arithmetic number, because the mean of its divisors is an integer number (7977168).

Almost surely, 2^56061511 is an apocalyptic number.

56061511 is a deficient number, since it is larger than the sum of its proper divisors (7755833).

56061511 is a wasteful number, since it uses less digits than its factorization.

56061511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221621.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 56061511 is about 7487.4235221470. The cubic root of 56061511 is about 382.7262642381.

Adding to 56061511 its reverse (11516065), we get a palindrome (67577576).

It can be divided in two parts, 5606 and 1511, that added together give a palindrome (7117).

The spelling of 56061511 in words is "fifty-six million, sixty-one thousand, five hundred eleven".