1252204505403 has 8 divisors (see below), whose sum is σ = 1669630852608. Its totient is φ = 834790580904.

The previous prime is 1252204505369. The next prime is 1252204505411. The reversal of 1252204505403 is 3045054022521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252204505403 - 2²¹ = 1252202408251 is a prime.

It is a super-2 number, since 2×1252204505403² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1252204505483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2867875 + ... + 3275532.

It is an arithmetic number, because the mean of its divisors is an integer number (208703856576).

Almost surely, 2^{1252204505403} is an apocalyptic number.

1252204505403 is a deficient number, since it is larger than the sum of its proper divisors (417426347205).

1252204505403 is an equidigital number, since it uses as much as digits as its factorization.

1252204505403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211353.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 1252204505403 its reverse (3045054022521), we get a palindrome (4297258527924).

The spelling of 1252204505403 in words is "one trillion, two hundred fifty-two billion, two hundred four million, five hundred five thousand, four hundred three".