1055551031 has 8 divisors (see below), whose sum is σ = 1073170560. Its totient is φ = 1037986488.

The previous prime is 1055551009. The next prime is 1055551069. The reversal of 1055551031 is 1301555501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055551031 - 2¹⁰ = 1055550007 is a prime.

It is a super-2 number, since 2×1055551031² = 2228375958090325922, 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 (1055556031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25910 + ... + 52748.

It is an arithmetic number, because the mean of its divisors is an integer number (134146320).

Almost surely, 2^1055551031 is an apocalyptic number.

1055551031 is a deficient number, since it is larger than the sum of its proper divisors (17619529).

1055551031 is an equidigital number, since it uses as much as digits as its factorization.

1055551031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27493.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1055551031 is about 32489.2448511811. The cubic root of 1055551031 is about 1018.1843359219.

The spelling of 1055551031 in words is "one billion, fifty-five million, five hundred fifty-one thousand, thirty-one".