53315647 has 16 divisors (see below), whose sum is σ = 67567104. Its totient is φ = 40860000.

The previous prime is 53315641. The next prime is 53315651. The reversal of 53315647 is 74651335.

It is a cyclic number.

It is not a de Polignac number, because 53315647 - 2¹¹ = 53313599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53315641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (4222944).

Almost surely, 2^53315647 is an apocalyptic number.

53315647 is a deficient number, since it is larger than the sum of its proper divisors (14251457).

53315647 is a wasteful number, since it uses less digits than its factorization.

53315647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11430.

The product of its digits is 37800, while the sum is 34.

The square root of 53315647 is about 7301.7564325305. The cubic root of 53315647 is about 376.3727982599.

The spelling of 53315647 in words is "fifty-three million, three hundred fifteen thousand, six hundred forty-seven".