111553424 has 20 divisors (see below), whose sum is σ = 219799920. Its totient is φ = 54830880.

The previous prime is 111553423. The next prime is 111553433. The reversal of 111553424 is 424355111.

It is a super-2 number, since 2×111553424² = 24888332812247552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111553393 and 111553402.

It is not an unprimeable number, because it can be changed into a prime (111553423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58142 + ... + 60029.

It is an arithmetic number, because the mean of its divisors is an integer number (10989996).

Almost surely, 2^111553424 is an apocalyptic number.

It is an amenable number.

111553424 is a deficient number, since it is larger than the sum of its proper divisors (108246496).

111553424 is a wasteful number, since it uses less digits than its factorization.

111553424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118238 (or 118232 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 111553424 is about 10561.8854377426. The cubic root of 111553424 is about 481.3869377221.

The spelling of 111553424 in words is "one hundred eleven million, five hundred fifty-three thousand, four hundred twenty-four".