53511197 has 2 divisors, whose sum is σ = 53511198. Its totient is φ = 53511196.

The previous prime is 53511193. The next prime is 53511253. The reversal of 53511197 is 79111535.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 10201636 = 6581^2 + 3194^2 .

It is a cyclic number.

It is not a de Polignac number, because 53511197 - 2² = 53511193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53511193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26755598 + 26755599.

It is an arithmetic number, because the mean of its divisors is an integer number (26755599).

Almost surely, 2^53511197 is an apocalyptic number.

It is an amenable number.

53511197 is a deficient number, since it is larger than the sum of its proper divisors (1).

53511197 is an equidigital number, since it uses as much as digits as its factorization.

53511197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4725, while the sum is 32.

The square root of 53511197 is about 7315.1347902824. The cubic root of 53511197 is about 376.8323875504.

The spelling of 53511197 in words is "fifty-three million, five hundred eleven thousand, one hundred ninety-seven".