74895553 has 2 divisors, whose sum is σ = 74895554. Its totient is φ = 74895552.

The previous prime is 74895539. The next prime is 74895589. The reversal of 74895553 is 35559847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73667889 + 1227664 = 8583^2 + 1108^2 .

It is an emirp because it is prime and its reverse (35559847) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74895553 is a prime.

It is not a weakly prime, because it can be changed into another prime (74895503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37447776 + 37447777.

It is an arithmetic number, because the mean of its divisors is an integer number (37447777).

Almost surely, 2^74895553 is an apocalyptic number.

It is an amenable number.

74895553 is a deficient number, since it is larger than the sum of its proper divisors (1).

74895553 is an equidigital number, since it uses as much as digits as its factorization.

74895553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 46.

The square root of 74895553 is about 8654.2216865528. The cubic root of 74895553 is about 421.5204772347.

The spelling of 74895553 in words is "seventy-four million, eight hundred ninety-five thousand, five hundred fifty-three".