553553431 has 4 divisors (see below), whose sum is σ = 553620312. Its totient is φ = 553486552.

The previous prime is 553553419. The next prime is 553553447. The reversal of 553553431 is 134355355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134355355 = 5 ⋅26871071.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553553431 is a prime.

It is a super-2 number, since 2×553553431² = 612842801943743522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553553401) 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, 18925 + ... + 38278.

It is an arithmetic number, because the mean of its divisors is an integer number (138405078).

Almost surely, 2^553553431 is an apocalyptic number.

553553431 is a deficient number, since it is larger than the sum of its proper divisors (66881).

553553431 is an equidigital number, since it uses as much as digits as its factorization.

553553431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66880.

The product of its digits is 67500, while the sum is 34.

The square root of 553553431 is about 23527.7162300126. The cubic root of 553553431 is about 821.0819700139.

The spelling of 553553431 in words is "five hundred fifty-three million, five hundred fifty-three thousand, four hundred thirty-one".