52661415 has 16 divisors (see below), whose sum is σ = 84352608. Its totient is φ = 28054656.

The previous prime is 52661387. The next prime is 52661417. The reversal of 52661415 is 51416625.

52661415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52661415 - 2⁸ = 52661159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52661417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19317 + ... + 21873.

It is an arithmetic number, because the mean of its divisors is an integer number (5272038).

Almost surely, 2^52661415 is an apocalyptic number.

52661415 is a deficient number, since it is larger than the sum of its proper divisors (31691193).

52661415 is a wasteful number, since it uses less digits than its factorization.

52661415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938.

The product of its digits is 7200, while the sum is 30.

The square root of 52661415 is about 7256.8185177804. The cubic root of 52661415 is about 374.8269779591.

The spelling of 52661415 in words is "fifty-two million, six hundred sixty-one thousand, four hundred fifteen".