99975541 has 2 divisors, whose sum is σ = 99975542. Its totient is φ = 99975540.

The previous prime is 99975529. The next prime is 99975553. The reversal of 99975541 is 14557999.

It is a balanced prime because it is at equal distance from previous prime (99975529) and next prime (99975553).

It can be written as a sum of positive squares in only one way, i.e., 67996516 + 31979025 = 8246^2 + 5655^2 .

It is an emirp because it is prime and its reverse (14557999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99975541 - 2⁵ = 99975509 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99975041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987770 + 49987771.

It is an arithmetic number, because the mean of its divisors is an integer number (49987771).

Almost surely, 2^99975541 is an apocalyptic number.

It is an amenable number.

99975541 is a deficient number, since it is larger than the sum of its proper divisors (1).

99975541 is an equidigital number, since it uses as much as digits as its factorization.

99975541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 49.

The square root of 99975541 is about 9998.7769752105. The cubic root of 99975541 is about 464.1210374018.

The spelling of 99975541 in words is "ninety-nine million, nine hundred seventy-five thousand, five hundred forty-one".