11573255450 has 12 divisors (see below), whose sum is σ = 21526255230. Its totient is φ = 4629302160.

The previous prime is 11573255431. The next prime is 11573255453. The reversal of 11573255450 is 5455237511.

It can be written as a sum of positive squares in 3 ways, for example, as 6260449129 + 5312806321 = 79123^2 + 72889^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11573255453) 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, 115732505 + ... + 115732604.

Almost surely, 2^11573255450 is an apocalyptic number.

11573255450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11573255450 is a deficient number, since it is larger than the sum of its proper divisors (9952999780).

11573255450 is a wasteful number, since it uses less digits than its factorization.

11573255450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231465121 (or 231465116 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 11573255450 in words is "eleven billion, five hundred seventy-three million, two hundred fifty-five thousand, four hundred fifty".