1055422631 has 4 divisors (see below), whose sum is σ = 1056411000. Its totient is φ = 1054434264.

The previous prime is 1055422601. The next prime is 1055422649. The reversal of 1055422631 is 1362245501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1362245501 = 10343 ⋅131707.

It is a cyclic number.

It is not a de Polignac number, because 1055422631 - 2¹⁰ = 1055421607 is a prime.

It is a super-2 number, since 2×1055422631² = 2227833860053924322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055422594 and 1055422603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055422601) 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, 492581 + ... + 494718.

It is an arithmetic number, because the mean of its divisors is an integer number (264102750).

Almost surely, 2^1055422631 is an apocalyptic number.

1055422631 is a deficient number, since it is larger than the sum of its proper divisors (988369).

1055422631 is an equidigital number, since it uses as much as digits as its factorization.

1055422631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988368.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1055422631 is about 32487.2687525437. The cubic root of 1055422631 is about 1018.1430493754.

The spelling of 1055422631 in words is "one billion, fifty-five million, four hundred twenty-two thousand, six hundred thirty-one".