1025404202253 has 4 divisors (see below), whose sum is σ = 1367205603008. Its totient is φ = 683602801500.

The previous prime is 1025404202243. The next prime is 1025404202257. The reversal of 1025404202253 is 3522024045201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1025404202253 - 2¹⁰ = 1025404201229 is a prime.

It is a super-2 number, since 2×1025404202253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025404202253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025404202257) 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, 170900700373 + ... + 170900700378.

It is an arithmetic number, because the mean of its divisors is an integer number (341801400752).

Almost surely, 2^{1025404202253} is an apocalyptic number.

It is an amenable number.

1025404202253 is a deficient number, since it is larger than the sum of its proper divisors (341801400755).

1025404202253 is an equidigital number, since it uses as much as digits as its factorization.

1025404202253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341801400754.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 1025404202253 its reverse (3522024045201), we get a palindrome (4547428247454).

The spelling of 1025404202253 in words is "one trillion, twenty-five billion, four hundred four million, two hundred two thousand, two hundred fifty-three".