25213523550203 has 4 divisors (see below), whose sum is σ = 25217479860288. Its totient is φ = 25209567240120.

The previous prime is 25213523550179. The next prime is 25213523550239. The reversal of 25213523550203 is 30205532531252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25213523550203 - 2⁴² = 20815477039099 is a prime.

It is a super-2 number, since 2×25213523550203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25213523550403) 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, 1978145483 + ... + 1978158228.

It is an arithmetic number, because the mean of its divisors is an integer number (6304369965072).

Almost surely, 2^{25213523550203} is an apocalyptic number.

25213523550203 is a deficient number, since it is larger than the sum of its proper divisors (3956310085).

25213523550203 is an equidigital number, since it uses as much as digits as its factorization.

25213523550203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956310084.

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 25213523550203 in words is "twenty-five trillion, two hundred thirteen billion, five hundred twenty-three million, five hundred fifty thousand, two hundred three".