52751989 has 2 divisors, whose sum is σ = 52751990. Its totient is φ = 52751988.

The previous prime is 52751983. The next prime is 52752019. The reversal of 52751989 is 98915725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 116964 = 7255^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 52751989 - 2²³ = 44363381 is a prime.

It is a super-2 number, since 2×52751989² = 5565544686912242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52751983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26375994 + 26375995.

It is an arithmetic number, because the mean of its divisors is an integer number (26375995).

Almost surely, 2^52751989 is an apocalyptic number.

It is an amenable number.

52751989 is a deficient number, since it is larger than the sum of its proper divisors (1).

52751989 is an equidigital number, since it uses as much as digits as its factorization.

52751989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 46.

The square root of 52751989 is about 7263.0564502832. The cubic root of 52751989 is about 375.0417470560.

The spelling of 52751989 in words is "fifty-two million, seven hundred fifty-one thousand, nine hundred eighty-nine".