13772196025 has 45 divisors (see below), whose sum is σ = 19964270351. Its totient is φ = 9424075920.

The previous prime is 13772196007. The next prime is 13772196029. The reversal of 13772196025 is 52069127731.

The square root of 13772196025 is 117355.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4957990569 + 8814205456 = 70413^2 + 93884^2 .

It is not a de Polignac number, because 13772196025 - 2²³ = 13763807417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13772196029) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 28751736 + ... + 28752214.

Almost surely, 2^13772196025 is an apocalyptic number.

13772196025 is the 117355-th square number.

13772196025 is the 58678-th centered octagonal number.

It is an amenable number.

13772196025 is a deficient number, since it is larger than the sum of its proper divisors (6192074326).

13772196025 is an frugal number, since it uses more digits than its factorization.

13772196025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 13772196025 in words is "thirteen billion, seven hundred seventy-two million, one hundred ninety-six thousand, twenty-five".