997525733 has 2 divisors, whose sum is σ = 997525734. Its totient is φ = 997525732.

The previous prime is 997525723. The next prime is 997525819. The reversal of 997525733 is 337525799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683456449 + 314069284 = 26143^2 + 17722^2 .

It is a cyclic number.

It is not a de Polignac number, because 997525733 - 2⁴ = 997525717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997525703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498762866 + 498762867.

It is an arithmetic number, because the mean of its divisors is an integer number (498762867).

Almost surely, 2^997525733 is an apocalyptic number.

It is an amenable number.

997525733 is a deficient number, since it is larger than the sum of its proper divisors (1).

997525733 is an equidigital number, since it uses as much as digits as its factorization.

997525733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1786050, while the sum is 50.

The square root of 997525733 is about 31583.6307760840. The cubic root of 997525733 is about 999.1745631749.

The spelling of 997525733 in words is "nine hundred ninety-seven million, five hundred twenty-five thousand, seven hundred thirty-three".