1055257258 has 16 divisors (see below), whose sum is σ = 1727367264. Its totient is φ = 479500560.

The previous prime is 1055257253. The next prime is 1055257297. The reversal of 1055257258 is 8527525501.

It is a super-2 number, since 2×1055257258² = 2227135761123357128, 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 1055257258.

It is not an unprimeable number, because it can be changed into a prime (1055257253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79816 + ... + 92092.

It is an arithmetic number, because the mean of its divisors is an integer number (107960454).

Almost surely, 2^1055257258 is an apocalyptic number.

1055257258 is a deficient number, since it is larger than the sum of its proper divisors (672110006).

1055257258 is a wasteful number, since it uses less digits than its factorization.

1055257258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16197.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 1055257258 is about 32484.7234558030. The cubic root of 1055257258 is about 1018.0898693631.

The spelling of 1055257258 in words is "one billion, fifty-five million, two hundred fifty-seven thousand, two hundred fifty-eight".