52649197 has 2 divisors, whose sum is σ = 52649198. Its totient is φ = 52649196.

The previous prime is 52649189. The next prime is 52649249. The reversal of 52649197 is 79194625.

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., 30096196 + 22553001 = 5486^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 52649197 - 2³ = 52649189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52649117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26324598 + 26324599.

It is an arithmetic number, because the mean of its divisors is an integer number (26324599).

Almost surely, 2^52649197 is an apocalyptic number.

It is an amenable number.

52649197 is a deficient number, since it is larger than the sum of its proper divisors (1).

52649197 is an equidigital number, since it uses as much as digits as its factorization.

52649197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 52649197 is about 7255.9766399844. The cubic root of 52649197 is about 374.7979877883.

The spelling of 52649197 in words is "fifty-two million, six hundred forty-nine thousand, one hundred ninety-seven".