11253515523 has 8 divisors (see below), whose sum is σ = 15005396736. Its totient is φ = 7501989000.

The previous prime is 11253515459. The next prime is 11253515563. The reversal of 11253515523 is 32551535211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11253515523 - 2⁶ = 11253515459 is a prime.

It is a super-2 number, since 2×11253515523² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11253515563) 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, 2743 + ... + 150048.

It is an arithmetic number, because the mean of its divisors is an integer number (1875674592).

Almost surely, 2^11253515523 is an apocalyptic number.

11253515523 is a deficient number, since it is larger than the sum of its proper divisors (3751881213).

11253515523 is a wasteful number, since it uses less digits than its factorization.

11253515523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177345.

The product of its digits is 22500, while the sum is 33.

The spelling of 11253515523 in words is "eleven billion, two hundred fifty-three million, five hundred fifteen thousand, five hundred twenty-three".