53143897 has 2 divisors, whose sum is σ = 53143898. Its totient is φ = 53143896.

The previous prime is 53143891. The next prime is 53143903. The reversal of 53143897 is 79834135.

It is a balanced prime because it is at equal distance from previous prime (53143891) and next prime (53143903).

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 2178576 = 7139^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 53143897 - 2¹¹ = 53141849 is a prime.

It is not a weakly prime, because it can be changed into another prime (53143891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26571948 + 26571949.

It is an arithmetic number, because the mean of its divisors is an integer number (26571949).

Almost surely, 2^53143897 is an apocalyptic number.

It is an amenable number.

53143897 is a deficient number, since it is larger than the sum of its proper divisors (1).

53143897 is an equidigital number, since it uses as much as digits as its factorization.

53143897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 53143897 is about 7289.9860768043. The cubic root of 53143897 is about 375.9682168132.

The spelling of 53143897 in words is "fifty-three million, one hundred forty-three thousand, eight hundred ninety-seven".