275403550612369 has 9 divisors (see below), whose sum is σ = 275564801777083. Its totient is φ = 275242393780312.

The previous prime is 275403550612319. The next prime is 275403550612373. The reversal of 275403550612369 is 963216055304572.

It is a happy number.

The square root of 275403550612369 is 16595287.

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., 273415980737025 + 1987569875344 = 16535295^2 + 1409812^2 .

It is a de Polignac number, because none of the positive numbers 2^k-275403550612369 is a prime.

It is a super-2 number, since 2×275403550612369² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275403550612319) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36725366382 + ... + 36725373880.

Almost surely, 2^{275403550612369} is an apocalyptic number.

275403550612369 is the 16595287-th square number.

275403550612369 is the 8297644-th centered octagonal number.

It is an amenable number.

275403550612369 is a deficient number, since it is larger than the sum of its proper divisors (161251164714).

275403550612369 is an frugal number, since it uses more digits than its factorization.

275403550612369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19424 (or 9712 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 58.

The spelling of 275403550612369 in words is "two hundred seventy-five trillion, four hundred three billion, five hundred fifty million, six hundred twelve thousand, three hundred sixty-nine".