1055503431 has 6 divisors (see below), whose sum is σ = 1524616080. Its totient is φ = 703668948.

The previous prime is 1055503387. The next prime is 1055503441. The reversal of 1055503431 is 1343055501.

1055503431 is a `hidden beast` number, since 105 + 550 + 3 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 1055503431 - 2⁶ = 1055503367 is a prime.

It is a super-2 number, since 2×1055503431² = 2228174985705543522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055503395 and 1055503404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055503441) 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, 58639071 + ... + 58639088.

It is an arithmetic number, because the mean of its divisors is an integer number (254102680).

Almost surely, 2^1055503431 is an apocalyptic number.

1055503431 is a deficient number, since it is larger than the sum of its proper divisors (469112649).

1055503431 is a wasteful number, since it uses less digits than its factorization.

1055503431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117278165 (or 117278162 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1055503431 is about 32488.5122928090. The cubic root of 1055503431 is about 1018.1690307080.

Adding to 1055503431 its reverse (1343055501), we get a palindrome (2398558932).

The spelling of 1055503431 in words is "one billion, fifty-five million, five hundred three thousand, four hundred thirty-one".