1255051453 has 4 divisors (see below), whose sum is σ = 1256916988. Its totient is φ = 1253185920.

The previous prime is 1255051439. The next prime is 1255051463. The reversal of 1255051453 is 3541505521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124612569 + 1130438884 = 11163^2 + 33622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255051453 - 2⁹ = 1255050941 is a prime.

It is a super-2 number, since 2×1255051453² = 3150308299354822418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255051463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931758 + ... + 933103.

It is an arithmetic number, because the mean of its divisors is an integer number (314229247).

Almost surely, 2^1255051453 is an apocalyptic number.

It is an amenable number.

1255051453 is a deficient number, since it is larger than the sum of its proper divisors (1865535).

1255051453 is an equidigital number, since it uses as much as digits as its factorization.

1255051453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865534.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1255051453 is about 35426.7053647386. The cubic root of 1255051453 is about 1078.6664647997. Note that the first 3 decimals are identical.

Adding to 1255051453 its reverse (3541505521), we get a palindrome (4796556974).

The spelling of 1255051453 in words is "one billion, two hundred fifty-five million, fifty-one thousand, four hundred fifty-three".