53904197 has 4 divisors (see below), whose sum is σ = 56741280. Its totient is φ = 51067116.

The previous prime is 53904167. The next prime is 53904251. The reversal of 53904197 is 79140935.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79140935 = 5 ⋅15828187.

It is a cyclic number.

It is not a de Polignac number, because 53904197 - 2¹⁸ = 53642053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53904197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53904107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418513 + ... + 1418550.

It is an arithmetic number, because the mean of its divisors is an integer number (14185320).

Almost surely, 2^53904197 is an apocalyptic number.

It is an amenable number.

53904197 is a deficient number, since it is larger than the sum of its proper divisors (2837083).

53904197 is a wasteful number, since it uses less digits than its factorization.

53904197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837082.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 53904197 is about 7341.9477660904. The cubic root of 53904197 is about 377.7526563232.

The spelling of 53904197 in words is "fifty-three million, nine hundred four thousand, one hundred ninety-seven".