553432243 has 24 divisors (see below), whose sum is σ = 707030016. Its totient is φ = 423727200.

The previous prime is 553432223. The next prime is 553432267. The reversal of 553432243 is 342234355.

553432243 = T₃₄₄₂ + T₃₄₄₃ + ... + T₃₅₃₂.

It is not a de Polignac number, because 553432243 - 2⁵ = 553432211 is a prime.

It is a super-2 number, since 2×553432243² = 612574495184022098, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (553432223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29128 + ... + 44218.

It is an arithmetic number, because the mean of its divisors is an integer number (29459584).

Almost surely, 2^553432243 is an apocalyptic number.

553432243 is a deficient number, since it is larger than the sum of its proper divisors (153597773).

553432243 is a wasteful number, since it uses less digits than its factorization.

553432243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15155 (or 15142 counting only the distinct ones).

The product of its digits is 43200, while the sum is 31.

The square root of 553432243 is about 23525.1406584530. The cubic root of 553432243 is about 821.0220465337.

Adding to 553432243 its reverse (342234355), we get a palindrome (895666598).

The spelling of 553432243 in words is "five hundred fifty-three million, four hundred thirty-two thousand, two hundred forty-three".