53887733 has 2 divisors, whose sum is σ = 53887734. Its totient is φ = 53887732.

The previous prime is 53887679. The next prime is 53887753. The reversal of 53887733 is 33778835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49252324 + 4635409 = 7018^2 + 2153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53887733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53887753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26943866 + 26943867.

It is an arithmetic number, because the mean of its divisors is an integer number (26943867).

Almost surely, 2^53887733 is an apocalyptic number.

It is an amenable number.

53887733 is a deficient number, since it is larger than the sum of its proper divisors (1).

53887733 is an equidigital number, since it uses as much as digits as its factorization.

53887733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 53887733 is about 7340.8264521101. The cubic root of 53887733 is about 377.7141933131.

The spelling of 53887733 in words is "fifty-three million, eight hundred eighty-seven thousand, seven hundred thirty-three".