8572500077 has 2 divisors, whose sum is σ = 8572500078. Its totient is φ = 8572500076.

The previous prime is 8572500073. The next prime is 8572500103. The reversal of 8572500077 is 7700052758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6953725321 + 1618774756 = 83389^2 + 40234^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572500077 - 2² = 8572500073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8572500073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286250038 + 4286250039.

It is an arithmetic number, because the mean of its divisors is an integer number (4286250039).

Almost surely, 2^8572500077 is an apocalyptic number.

It is an amenable number.

8572500077 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572500077 is an equidigital number, since it uses as much as digits as its factorization.

8572500077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 8572500077 is about 92587.7965878873. The cubic root of 8572500077 is about 2046.6134907716.

The spelling of 8572500077 in words is "eight billion, five hundred seventy-two million, five hundred thousand, seventy-seven".