1225551263253 has 16 divisors (see below), whose sum is σ = 1636280126976. Its totient is φ = 815929040880.

The previous prime is 1225551263207. The next prime is 1225551263357. The reversal of 1225551263253 is 3523621555221.

It is not a de Polignac number, because 1225551263253 - 2¹² = 1225551259157 is a prime.

It is a super-2 number, since 2×1225551263253² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225551263203) 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, 6518658 + ... + 6704028.

It is an arithmetic number, because the mean of its divisors is an integer number (102267507936).

Almost surely, 2^{1225551263253} is an apocalyptic number.

It is an amenable number.

1225551263253 is a deficient number, since it is larger than the sum of its proper divisors (410728863723).

1225551263253 is a wasteful number, since it uses less digits than its factorization.

1225551263253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188344.

The product of its digits is 540000, while the sum is 42.

The spelling of 1225551263253 in words is "one trillion, two hundred twenty-five billion, five hundred fifty-one million, two hundred sixty-three thousand, two hundred fifty-three".