53831897 has 4 divisors (see below), whose sum is σ = 61522176. Its totient is φ = 46141620.

The previous prime is 53831881. The next prime is 53831909. The reversal of 53831897 is 79813835.

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.

It is not a de Polignac number, because 53831897 - 2⁴ = 53831881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53831837) 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, 3845129 + ... + 3845142.

It is an arithmetic number, because the mean of its divisors is an integer number (15380544).

Almost surely, 2^53831897 is an apocalyptic number.

It is an amenable number.

53831897 is a deficient number, since it is larger than the sum of its proper divisors (7690279).

53831897 is an equidigital number, since it uses as much as digits as its factorization.

53831897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690278.

The product of its digits is 181440, while the sum is 44.

The square root of 53831897 is about 7337.0223524261. The cubic root of 53831897 is about 377.5836915155.

The spelling of 53831897 in words is "fifty-three million, eight hundred thirty-one thousand, eight hundred ninety-seven".