111553253 has 12 divisors (see below), whose sum is σ = 129938112. Its totient is φ = 95490360.

The previous prime is 111553249. The next prime is 111553279. The reversal of 111553253 is 352355111.

It is a happy number.

It is not a de Polignac number, because 111553253 - 2² = 111553249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111553153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72098 + ... + 73628.

It is an arithmetic number, because the mean of its divisors is an integer number (10828176).

Almost surely, 2^111553253 is an apocalyptic number.

It is an amenable number.

111553253 is a deficient number, since it is larger than the sum of its proper divisors (18384859).

111553253 is a wasteful number, since it uses less digits than its factorization.

111553253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032 (or 3025 counting only the distinct ones).

The product of its digits is 2250, while the sum is 26.

The square root of 111553253 is about 10561.8773425940. The cubic root of 111553253 is about 481.3866917496.

The spelling of 111553253 in words is "one hundred eleven million, five hundred fifty-three thousand, two hundred fifty-three".