1055261253 has 16 divisors (see below), whose sum is σ = 1428650496. Its totient is φ = 692745840.

The previous prime is 1055261227. The next prime is 1055261257. The reversal of 1055261253 is 3521625501.

It is a happy number.

It is not a de Polignac number, because 1055261253 - 2¹⁰ = 1055260229 is a prime.

It is a super-2 number, since 2×1055261253² = 2227152624166260018, 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 1055261253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055261257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70626 + ... + 84252.

It is an arithmetic number, because the mean of its divisors is an integer number (89290656).

Almost surely, 2^1055261253 is an apocalyptic number.

It is an amenable number.

1055261253 is a deficient number, since it is larger than the sum of its proper divisors (373389243).

1055261253 is a wasteful number, since it uses less digits than its factorization.

1055261253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14024.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1055261253 is about 32484.7849461867. The cubic root of 1055261253 is about 1018.0911541253.

Adding to 1055261253 its reverse (3521625501), we get a palindrome (4576886754).

The spelling of 1055261253 in words is "one billion, fifty-five million, two hundred sixty-one thousand, two hundred fifty-three".