1055021 has 4 divisors (see below), whose sum is σ = 1150944. Its totient is φ = 959100.

The previous prime is 1055017. The next prime is 1055039. The reversal of 1055021 is 1205501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1055021 - 2² = 1055017 is a prime.

It is a super-2 number, since 2×1055021² = 2226138620882, 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 = 1054987 and 1055005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055321) 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, 47945 + ... + 47966.

It is an arithmetic number, because the mean of its divisors is an integer number (287736).

2^1055021 is an apocalyptic number.

1055021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1055021 is a deficient number, since it is larger than the sum of its proper divisors (95923).

1055021 is an equidigital number, since it uses as much as digits as its factorization.

1055021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95922.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1055021 is about 1027.1421517979. The cubic root of 1055021 is about 101.8013884786.

The spelling of 1055021 in words is "one million, fifty-five thousand, twenty-one".