75521023 has 2 divisors, whose sum is σ = 75521024. Its totient is φ = 75521022.

The previous prime is 75521011. The next prime is 75521041. The reversal of 75521023 is 32012557.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75521023 - 2²¹ = 73423871 is a prime.

It is a zygodrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75521923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37760511 + 37760512.

It is an arithmetic number, because the mean of its divisors is an integer number (37760512).

Almost surely, 2^75521023 is an apocalyptic number.

75521023 is a deficient number, since it is larger than the sum of its proper divisors (1).

75521023 is an equidigital number, since it uses as much as digits as its factorization.

75521023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 75521023 is about 8690.2832520005. The cubic root of 75521023 is about 422.6906306867.

The spelling of 75521023 in words is "seventy-five million, five hundred twenty-one thousand, twenty-three".