53257415 has 4 divisors (see below), whose sum is σ = 63908904. Its totient is φ = 42605928.

The previous prime is 53257403. The next prime is 53257417. The reversal of 53257415 is 51475235.

53257415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53257415 - 2⁸ = 53257159 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 (53257417) 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 3 ways as a sum of consecutive naturals, for example, 5325737 + ... + 5325746.

It is an arithmetic number, because the mean of its divisors is an integer number (15977226).

Almost surely, 2^53257415 is an apocalyptic number.

53257415 is a deficient number, since it is larger than the sum of its proper divisors (10651489).

53257415 is a wasteful number, since it uses less digits than its factorization.

53257415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651488.

The product of its digits is 21000, while the sum is 32.

The square root of 53257415 is about 7297.7678094058. The cubic root of 53257415 is about 376.2357220220.

The spelling of 53257415 in words is "fifty-three million, two hundred fifty-seven thousand, four hundred fifteen".