53455397 has 2 divisors, whose sum is σ = 53455398. Its totient is φ = 53455396.

The previous prime is 53455313. The next prime is 53455433. The reversal of 53455397 is 79355435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 11062276 = 6511^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 53455397 - 2⁸ = 53455141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53451397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26727698 + 26727699.

It is an arithmetic number, because the mean of its divisors is an integer number (26727699).

Almost surely, 2^53455397 is an apocalyptic number.

It is an amenable number.

53455397 is a deficient number, since it is larger than the sum of its proper divisors (1).

53455397 is an equidigital number, since it uses as much as digits as its factorization.

53455397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 41.

The square root of 53455397 is about 7311.3197851004. The cubic root of 53455397 is about 376.7013585228.

The spelling of 53455397 in words is "fifty-three million, four hundred fifty-five thousand, three hundred ninety-seven".