53915397 has 8 divisors (see below), whose sum is σ = 71938944. Its totient is φ = 35917728.

The previous prime is 53915383. The next prime is 53915419. The reversal of 53915397 is 79351935.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53915397 - 2²⁴ = 37138181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53915357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (8992368).

Almost surely, 2^53915397 is an apocalyptic number.

It is an amenable number.

53915397 is a deficient number, since it is larger than the sum of its proper divisors (18023547).

53915397 is a wasteful number, since it uses less digits than its factorization.

53915397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12939.

The product of its digits is 127575, while the sum is 42.

The square root of 53915397 is about 7342.7104668508. The cubic root of 53915397 is about 377.7788171604.

The spelling of 53915397 in words is "fifty-three million, nine hundred fifteen thousand, three hundred ninety-seven".