52657615 has 4 divisors (see below), whose sum is σ = 63189144. Its totient is φ = 42126088.

The previous prime is 52657609. The next prime is 52657621. The reversal of 52657615 is 51675625.

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

It is an interprime number because it is at equal distance from previous prime (52657609) and next prime (52657621).

It is a cyclic number.

It is not a de Polignac number, because 52657615 - 2⁹ = 52657103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5265757 + ... + 5265766.

It is an arithmetic number, because the mean of its divisors is an integer number (15797286).

Almost surely, 2^52657615 is an apocalyptic number.

52657615 is a deficient number, since it is larger than the sum of its proper divisors (10531529).

52657615 is a wasteful number, since it uses less digits than its factorization.

52657615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10531528.

The product of its digits is 63000, while the sum is 37.

The square root of 52657615 is about 7256.5566903319. The cubic root of 52657615 is about 374.8179620171.

It can be divided in two parts, 5265 and 7615, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 52657615 in words is "fifty-two million, six hundred fifty-seven thousand, six hundred fifteen".