1553055431 has 2 divisors, whose sum is σ = 1553055432. Its totient is φ = 1553055430.

The previous prime is 1553055419. The next prime is 1553055463. The reversal of 1553055431 is 1345503551.

It is an a-pointer prime, because the next prime (1553055463) can be obtained adding 1553055431 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1553055431 - 2³⁰ = 479313607 is a prime.

It is a super-2 number, since 2×1553055431² = 4823962343517191522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553055481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776527715 + 776527716.

It is an arithmetic number, because the mean of its divisors is an integer number (776527716).

Almost surely, 2^1553055431 is an apocalyptic number.

1553055431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553055431 is an equidigital number, since it uses as much as digits as its factorization.

1553055431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1553055431 is about 39408.8242783263. The cubic root of 1553055431 is about 1158.0544654677.

Adding to 1553055431 its reverse (1345503551), we get a palindrome (2898558982).

The spelling of 1553055431 in words is "one billion, five hundred fifty-three million, fifty-five thousand, four hundred thirty-one".