1057020455 has 8 divisors (see below), whose sum is σ = 1271827392. Its totient is φ = 843347808.

The previous prime is 1057020443. The next prime is 1057020473. The reversal of 1057020455 is 5540207501.

1057020455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1057020455 - 2⁴ = 1057020439 is a prime.

It is a super-2 number, since 2×1057020455² = 2234584484576814050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281519 + ... + 285248.

It is an arithmetic number, because the mean of its divisors is an integer number (158978424).

Almost surely, 2^1057020455 is an apocalyptic number.

1057020455 is a deficient number, since it is larger than the sum of its proper divisors (214806937).

1057020455 is an equidigital number, since it uses as much as digits as its factorization.

1057020455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567145.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 1057020455 is about 32511.8509931379. The cubic root of 1057020455 is about 1018.6565855606.

Adding to 1057020455 its reverse (5540207501), we get a palindrome (6597227956).

The spelling of 1057020455 in words is "one billion, fifty-seven million, twenty thousand, four hundred fifty-five".