52989551 has 2 divisors, whose sum is σ = 52989552. Its totient is φ = 52989550.

The previous prime is 52989533. The next prime is 52989557. The reversal of 52989551 is 15598925.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52989551 is a prime.

It is a Sophie Germain 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 (52989557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26494775 + 26494776.

It is an arithmetic number, because the mean of its divisors is an integer number (26494776).

Almost surely, 2^52989551 is an apocalyptic number.

52989551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52989551 is an equidigital number, since it uses as much as digits as its factorization.

52989551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 44.

The square root of 52989551 is about 7279.3922136398. The cubic root of 52989551 is about 375.6038886237.

The spelling of 52989551 in words is "fifty-two million, nine hundred eighty-nine thousand, five hundred fifty-one".