36720897025 has 6 divisors (see below), whose sum is σ = 45533912342. Its totient is φ = 29376717600.

The previous prime is 36720897023. The next prime is 36720897137. The reversal of 36720897025 is 52079802763.

It can be written as a sum of positive squares in 3 ways, for example, as 4702804929 + 32018092096 = 68577^2 + 178936^2 .

It is not a de Polignac number, because 36720897025 - 2¹ = 36720897023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36720897025.

It is not an unprimeable number, because it can be changed into a prime (36720897023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734417916 + ... + 734417965.

Almost surely, 2^36720897025 is an apocalyptic number.

It is an amenable number.

36720897025 is a deficient number, since it is larger than the sum of its proper divisors (8813015317).

36720897025 is a wasteful number, since it uses less digits than its factorization.

36720897025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468835891 (or 1468835886 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 36720897025 in words is "thirty-six billion, seven hundred twenty million, eight hundred ninety-seven thousand, twenty-five".