75002749 has 2 divisors, whose sum is σ = 75002750. Its totient is φ = 75002748.

The previous prime is 75002731. The next prime is 75002761. The reversal of 75002749 is 94720057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73359225 + 1643524 = 8565^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 75002749 - 2¹⁷ = 74871677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75002789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37501374 + 37501375.

It is an arithmetic number, because the mean of its divisors is an integer number (37501375).

Almost surely, 2^75002749 is an apocalyptic number.

It is an amenable number.

75002749 is a deficient number, since it is larger than the sum of its proper divisors (1).

75002749 is an equidigital number, since it uses as much as digits as its factorization.

75002749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 75002749 is about 8660.4127499791. The cubic root of 75002749 is about 421.7214850244.

The spelling of 75002749 in words is "seventy-five million, two thousand, seven hundred forty-nine".