553605431 has 4 divisors (see below), whose sum is σ = 554333664. Its totient is φ = 552877200.

The previous prime is 553605421. The next prime is 553605457. The reversal of 553605431 is 134506355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134506355 = 5 ⋅26901271.

It is a cyclic number.

It is not a de Polignac number, because 553605431 - 2¹⁰ = 553604407 is a prime.

It is a super-2 number, since 2×553605431² = 612957946465391522, 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 (553605421) 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, 362975 + ... + 364496.

It is an arithmetic number, because the mean of its divisors is an integer number (138583416).

Almost surely, 2^553605431 is an apocalyptic number.

553605431 is a deficient number, since it is larger than the sum of its proper divisors (728233).

553605431 is an equidigital number, since it uses as much as digits as its factorization.

553605431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728232.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 553605431 is about 23528.8212836937. The cubic root of 553605431 is about 821.1076796221.

The spelling of 553605431 in words is "five hundred fifty-three million, six hundred five thousand, four hundred thirty-one".