56526515 has 4 divisors (see below), whose sum is σ = 67831824. Its totient is φ = 45221208.

The previous prime is 56526497. The next prime is 56526527. The reversal of 56526515 is 51562565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51562565 = 5 ⋅10312513.

It is a cyclic number.

It is not a de Polignac number, because 56526515 - 2⁶ = 56526451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652647 + ... + 5652656.

It is an arithmetic number, because the mean of its divisors is an integer number (16957956).

Almost surely, 2^56526515 is an apocalyptic number.

56526515 is a deficient number, since it is larger than the sum of its proper divisors (11305309).

56526515 is a wasteful number, since it uses less digits than its factorization.

56526515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305308.

The product of its digits is 45000, while the sum is 35.

The square root of 56526515 is about 7518.4117338704. The cubic root of 56526515 is about 383.7815303698.

It can be divided in two parts, 5652 and 6515, that added together give a cube (12167 = 23³).

The spelling of 56526515 in words is "fifty-six million, five hundred twenty-six thousand, five hundred fifteen".