53315949 has 16 divisors (see below), whose sum is σ = 75337920. Its totient is φ = 33479040.

The previous prime is 53315947. The next prime is 53315971. The reversal of 53315949 is 94951335.

It is not a de Polignac number, because 53315949 - 2¹ = 53315947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53315947) 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, 3907 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (4708620).

Almost surely, 2^53315949 is an apocalyptic number.

It is an amenable number.

53315949 is a deficient number, since it is larger than the sum of its proper divisors (22021971).

53315949 is a wasteful number, since it uses less digits than its factorization.

53315949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020.

The product of its digits is 72900, while the sum is 39.

The square root of 53315949 is about 7301.7771124569. Note that the first 3 decimals coincide. The cubic root of 53315949 is about 376.3735088979.

The spelling of 53315949 in words is "fifty-three million, three hundred fifteen thousand, nine hundred forty-nine".