1952905489 has 2 divisors, whose sum is σ = 1952905490. Its totient is φ = 1952905488.

The previous prime is 1952905429. The next prime is 1952905511. The reversal of 1952905489 is 9845092591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317109264 + 635796225 = 36292^2 + 25215^2 .

It is an emirp because it is prime and its reverse (9845092591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1952905489 - 2²⁹ = 1416034577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1952905429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976452744 + 976452745.

It is an arithmetic number, because the mean of its divisors is an integer number (976452745).

Almost surely, 2^1952905489 is an apocalyptic number.

It is an amenable number.

1952905489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1952905489 is an equidigital number, since it uses as much as digits as its factorization.

1952905489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The square root of 1952905489 is about 44191.6902709095. The cubic root of 1952905489 is about 1249.9531692322.

The spelling of 1952905489 in words is "one billion, nine hundred fifty-two million, nine hundred five thousand, four hundred eighty-nine".