1225850210953 has 4 divisors (see below), whose sum is σ = 1255748996628. Its totient is φ = 1195951425280.

The previous prime is 1225850210951. The next prime is 1225850210987. The reversal of 1225850210953 is 3590120585221.

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 453133615104 + 772716595849 = 673152^2 + 879043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225850210953 - 2¹ = 1225850210951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225850210951) 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, 14949392776 + ... + 14949392857.

It is an arithmetic number, because the mean of its divisors is an integer number (313937249157).

Almost surely, 2^{1225850210953} is an apocalyptic number.

It is an amenable number.

1225850210953 is a deficient number, since it is larger than the sum of its proper divisors (29898785675).

1225850210953 is an equidigital number, since it uses as much as digits as its factorization.

1225850210953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29898785674.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 1225850210953 in words is "one trillion, two hundred twenty-five billion, eight hundred fifty million, two hundred ten thousand, nine hundred fifty-three".