1253541503233 has 4 divisors (see below), whose sum is σ = 1296767072340. Its totient is φ = 1210315934128.

The previous prime is 1253541503231. The next prime is 1253541503261. The reversal of 1253541503233 is 3323051453521.

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 811327143169 + 442214360064 = 900737^2 + 664992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253541503233 - 2¹ = 1253541503231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253541503192 and 1253541503201.

It is not an unprimeable number, because it can be changed into a prime (1253541503231) 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, 21612784510 + ... + 21612784567.

It is an arithmetic number, because the mean of its divisors is an integer number (324191768085).

Almost surely, 2^{1253541503233} is an apocalyptic number.

It is an amenable number.

1253541503233 is a deficient number, since it is larger than the sum of its proper divisors (43225569107).

1253541503233 is an equidigital number, since it uses as much as digits as its factorization.

1253541503233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43225569106.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 1253541503233 its reverse (3323051453521), we get a palindrome (4576592956754).

The spelling of 1253541503233 in words is "one trillion, two hundred fifty-three billion, five hundred forty-one million, five hundred three thousand, two hundred thirty-three".