11275997532 has 24 divisors (see below), whose sum is σ = 26313882000. Its totient is φ = 3758205696.

The previous prime is 11275997531. The next prime is 11275997533. The reversal of 11275997532 is 23579957211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11275997531) and next prime (11275997533).

It is a super-3 number, since 3×11275997532³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11275997531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53094 + ... + 159282.

It is an arithmetic number, because the mean of its divisors is an integer number (1096411750).

Almost surely, 2^11275997532 is an apocalyptic number.

11275997532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 106188×106189.

It is an amenable number.

11275997532 is an abundant number, since it is smaller than the sum of its proper divisors (15037884468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11275997532 is a wasteful number, since it uses less digits than its factorization.

11275997532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115045 (or 115043 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 51.

The spelling of 11275997532 in words is "eleven billion, two hundred seventy-five million, nine hundred ninety-seven thousand, five hundred thirty-two".