1057448550 has 24 divisors (see below), whose sum is σ = 2622472776. Its totient is φ = 281986240.

The previous prime is 1057448521. The next prime is 1057448551. The reversal of 1057448550 is 558447501.

It is a super-2 number, since 2×1057448550² = 2236394871794205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057448499 and 1057448508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057448551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3524679 + ... + 3524978.

It is an arithmetic number, because the mean of its divisors is an integer number (109269699).

Almost surely, 2^1057448550 is an apocalyptic number.

1057448550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057448550 is an abundant number, since it is smaller than the sum of its proper divisors (1565024226).

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

1057448550 is a wasteful number, since it uses less digits than its factorization.

1057448550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049672 (or 7049667 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 1057448550 is about 32518.4340028852. The cubic root of 1057448550 is about 1018.7940861898.

The spelling of 1057448550 in words is "one billion, fifty-seven million, four hundred forty-eight thousand, five hundred fifty".