1057156552 has 16 divisors (see below), whose sum is σ = 2011754160. Its totient is φ = 520688784.

The previous prime is 1057156547. The next prime is 1057156553. The reversal of 1057156552 is 2556517501.

It is a super-2 number, since 2×1057156552² = 2235159950873057408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057156553) 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, 985618 + ... + 986689.

It is an arithmetic number, because the mean of its divisors is an integer number (125734635).

Almost surely, 2^1057156552 is an apocalyptic number.

It is an amenable number.

1057156552 is a deficient number, since it is larger than the sum of its proper divisors (954597608).

1057156552 is a wasteful number, since it uses less digits than its factorization.

1057156552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972380 (or 1972376 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 37.

The square root of 1057156552 is about 32513.9439625524. The cubic root of 1057156552 is about 1018.7003028337.

It can be divided in two parts, 1057 and 156552, that added together give a square (157609 = 397²).

The spelling of 1057156552 in words is "one billion, fifty-seven million, one hundred fifty-six thousand, five hundred fifty-two".