1057245705 has 24 divisors (see below), whose sum is σ = 1833316992. Its totient is φ = 563631264.

The previous prime is 1057245667. The next prime is 1057245727. The reversal of 1057245705 is 5075427501.

1057245705 is a `hidden beast` number, since 10 + 5 + 72 + 4 + 570 + 5 = 666.

It is not a de Polignac number, because 1057245705 - 2¹⁹ = 1056721417 is a prime.

It is a super-2 number, since 2×1057245705² = 2235536961481894050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057245705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202032 + ... + 207198.

It is an arithmetic number, because the mean of its divisors is an integer number (76388208).

Almost surely, 2^1057245705 is an apocalyptic number.

1057245705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1057245705 is a deficient number, since it is larger than the sum of its proper divisors (776071287).

1057245705 is a wasteful number, since it uses less digits than its factorization.

1057245705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725 (or 9722 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 1057245705 is about 32515.3149300449. The cubic root of 1057245705 is about 1018.7289386540.

The spelling of 1057245705 in words is "one billion, fifty-seven million, two hundred forty-five thousand, seven hundred five".