75454957 has 2 divisors, whose sum is σ = 75454958. Its totient is φ = 75454956.

The previous prime is 75454937. The next prime is 75454997. The reversal of 75454957 is 75945457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62631396 + 12823561 = 7914^2 + 3581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75454957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75454937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37727478 + 37727479.

It is an arithmetic number, because the mean of its divisors is an integer number (37727479).

Almost surely, 2^75454957 is an apocalyptic number.

It is an amenable number.

75454957 is a deficient number, since it is larger than the sum of its proper divisors (1).

75454957 is an equidigital number, since it uses as much as digits as its factorization.

75454957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 882000, while the sum is 46.

The square root of 75454957 is about 8686.4812784004. The cubic root of 75454957 is about 422.5673377494.

It can be divided in two parts, 754549 and 57, that added together give a triangular number (754606 = T₁₂₂₈).

The spelling of 75454957 in words is "seventy-five million, four hundred fifty-four thousand, nine hundred fifty-seven".