275380393450 has 12 divisors (see below), whose sum is σ = 512207531910. Its totient is φ = 110152157360.

The previous prime is 275380393447. The next prime is 275380393517. The reversal of 275380393450 is 54393083572.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 182246171409 + 93134222041 = 426903^2 + 305179^2 .

It is a super-2 number, since 2×275380393450² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275380393394 and 275380393403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2753803885 + ... + 2753803984.

Almost surely, 2^275380393450 is an apocalyptic number.

275380393450 is a deficient number, since it is larger than the sum of its proper divisors (236827138460).

275380393450 is a wasteful number, since it uses less digits than its factorization.

275380393450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507607881 (or 5507607876 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 275380393450 in words is "two hundred seventy-five billion, three hundred eighty million, three hundred ninety-three thousand, four hundred fifty".