1057215020 has 12 divisors (see below), whose sum is σ = 2220151584. Its totient is φ = 422886000.

The previous prime is 1057215013. The next prime is 1057215037. The reversal of 1057215020 is 205127501.

It is a happy number.

1057215020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1057215020² = 2235407197027200800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26430356 + ... + 26430395.

It is an arithmetic number, because the mean of its divisors is an integer number (185012632).

Almost surely, 2^1057215020 is an apocalyptic number.

1057215020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057215020 is an abundant number, since it is smaller than the sum of its proper divisors (1162936564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057215020 is a wasteful number, since it uses less digits than its factorization.

1057215020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52860760 (or 52860758 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 1057215020 is about 32514.8430720494. The cubic root of 1057215020 is about 1018.7190828561.

The spelling of 1057215020 in words is "one billion, fifty-seven million, two hundred fifteen thousand, twenty".