53951789 has 2 divisors, whose sum is σ = 53951790. Its totient is φ = 53951788.

The previous prime is 53951747. The next prime is 53951791. The reversal of 53951789 is 98715935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45454564 + 8497225 = 6742^2 + 2915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53951789 is a prime.

Together with 53951791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53951189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26975894 + 26975895.

It is an arithmetic number, because the mean of its divisors is an integer number (26975895).

Almost surely, 2^53951789 is an apocalyptic number.

It is an amenable number.

53951789 is a deficient number, since it is larger than the sum of its proper divisors (1).

53951789 is an equidigital number, since it uses as much as digits as its factorization.

53951789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 47.

The square root of 53951789 is about 7345.1881527977. The cubic root of 53951789 is about 377.8637961917.

The spelling of 53951789 in words is "fifty-three million, nine hundred fifty-one thousand, seven hundred eighty-nine".