1057515270 has 64 divisors (see below), whose sum is σ = 2943945216. Its totient is φ = 238106880.

The previous prime is 1057515269. The next prime is 1057515287. The reversal of 1057515270 is 725157501.

It is a super-2 number, since 2×1057515270² = 2236677092566345800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23511 + ... + 51650.

It is an arithmetic number, because the mean of its divisors is an integer number (45999144).

Almost surely, 2^1057515270 is an apocalyptic number.

1057515270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057515270 is an abundant number, since it is smaller than the sum of its proper divisors (1886429946).

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

1057515270 is a wasteful number, since it uses less digits than its factorization.

1057515270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75245.

The product of its (nonzero) digits is 12250, while the sum is 33.

The square root of 1057515270 is about 32519.4598663631. The cubic root of 1057515270 is about 1018.8155127679.

It can be divided in two parts, 1057515 and 270, that added together give a triangular number (1057785 = T₁₄₅₄).

The spelling of 1057515270 in words is "one billion, fifty-seven million, five hundred fifteen thousand, two hundred seventy".