1057503747 has 16 divisors (see below), whose sum is σ = 1450407168. Its totient is φ = 685080480.

The previous prime is 1057503743. The next prime is 1057503761. The reversal of 1057503747 is 7473057501.

It is not a de Polignac number, because 1057503747 - 2² = 1057503743 is a prime.

It is a super-2 number, since 2×1057503747² = 2236628349838080018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057503743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19623 + ... + 50000.

It is an arithmetic number, because the mean of its divisors is an integer number (90650448).

Almost surely, 2^1057503747 is an apocalyptic number.

1057503747 is a deficient number, since it is larger than the sum of its proper divisors (392903421).

1057503747 is an equidigital number, since it uses as much as digits as its factorization.

1057503747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69770.

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 1057503747 is about 32519.2826950411. The cubic root of 1057503747 is about 1018.8118123158.

The spelling of 1057503747 in words is "one billion, fifty-seven million, five hundred three thousand, seven hundred forty-seven".