1057620265 has 16 divisors (see below), whose sum is σ = 1367730000. Its totient is φ = 780463872.

The previous prime is 1057620229. The next prime is 1057620271. The reversal of 1057620265 is 5620267501.

It can be written as a sum of positive squares in 8 ways, for example, as 198133776 + 859486489 = 14076^2 + 29317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057620265 - 2⁹ = 1057619753 is a prime.

It is a super-2 number, since 2×1057620265² = 2237121249877340450, 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 1057620265.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103611 + ... + 113359.

It is an arithmetic number, because the mean of its divisors is an integer number (85483125).

Almost surely, 2^1057620265 is an apocalyptic number.

It is an amenable number.

1057620265 is a deficient number, since it is larger than the sum of its proper divisors (310109735).

1057620265 is a wasteful number, since it uses less digits than its factorization.

1057620265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1057620265 is about 32521.0741673765. The cubic root of 1057620265 is about 1018.8492292219.

Adding to 1057620265 its reverse (5620267501), we get a palindrome (6677887766).

The spelling of 1057620265 in words is "one billion, fifty-seven million, six hundred twenty thousand, two hundred sixty-five".