53953633 has 2 divisors, whose sum is σ = 53953634. Its totient is φ = 53953632.

The previous prime is 53953621. The next prime is 53953637. The reversal of 53953633 is 33635935.

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., 49322529 + 4631104 = 7023^2 + 2152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53953633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53953592 and 53953601.

It is not a weakly prime, because it can be changed into another prime (53953637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26976816 + 26976817.

It is an arithmetic number, because the mean of its divisors is an integer number (26976817).

Almost surely, 2^53953633 is an apocalyptic number.

It is an amenable number.

53953633 is a deficient number, since it is larger than the sum of its proper divisors (1).

53953633 is an equidigital number, since it uses as much as digits as its factorization.

53953633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 37.

The square root of 53953633 is about 7345.3136760795. The cubic root of 53953633 is about 377.8681011024.

The spelling of 53953633 in words is "fifty-three million, nine hundred fifty-three thousand, six hundred thirty-three".