111425553 has 6 divisors (see below), whose sum is σ = 160948034. Its totient is φ = 74283696.

The previous prime is 111425551. The next prime is 111425603. The reversal of 111425553 is 355524111.

It can be written as a sum of positive squares in only one way, i.e., 58018689 + 53406864 = 7617^2 + 7308^2 .

It is not a de Polignac number, because 111425553 - 2¹ = 111425551 is a prime.

It is a super-2 number, since 2×111425553² = 24831307722711618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111425551) 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, 6190300 + ... + 6190317.

Almost surely, 2^111425553 is an apocalyptic number.

It is an amenable number.

111425553 is a deficient number, since it is larger than the sum of its proper divisors (49522481).

111425553 is a wasteful number, since it uses less digits than its factorization.

111425553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380623 (or 12380620 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 111425553 is about 10555.8302847289. The cubic root of 111425553 is about 481.2029333179.

Adding to 111425553 its reverse (355524111), we get a palindrome (466949664).

The spelling of 111425553 in words is "one hundred eleven million, four hundred twenty-five thousand, five hundred fifty-three".