975625249 has 2 divisors, whose sum is σ = 975625250. Its totient is φ = 975625248.

The previous prime is 975625207. The next prime is 975625267. The reversal of 975625249 is 942526579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598683024 + 376942225 = 24468^2 + 19415^2 .

It is a cyclic number.

It is not a de Polignac number, because 975625249 - 2¹⁹ = 975100961 is a prime.

It is not a weakly prime, because it can be changed into another prime (972625249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487812624 + 487812625.

It is an arithmetic number, because the mean of its divisors is an integer number (487812625).

Almost surely, 2^975625249 is an apocalyptic number.

It is an amenable number.

975625249 is a deficient number, since it is larger than the sum of its proper divisors (1).

975625249 is an equidigital number, since it uses as much as digits as its factorization.

975625249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 49.

The square root of 975625249 is about 31235.0003841844. Note that the first 3 decimals coincide. The cubic root of 975625249 is about 991.8081599986.

The spelling of 975625249 in words is "nine hundred seventy-five million, six hundred twenty-five thousand, two hundred forty-nine".