25213510420553 has 32 divisors (see below), whose sum is σ = 31078359384576. Its totient is φ = 19919378953728.

The previous prime is 25213510420531. The next prime is 25213510420591. The reversal of 25213510420553 is 35502401531252.

It is a cyclic number.

It is not a de Polignac number, because 25213510420553 - 2²⁴ = 25213493643337 is a prime.

It is a super-2 number, since 2×25213510420553² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25213510420853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167437451 + ... + 167587967.

It is an arithmetic number, because the mean of its divisors is an integer number (971198730768).

Almost surely, 2^{25213510420553} is an apocalyptic number.

It is an amenable number.

25213510420553 is a deficient number, since it is larger than the sum of its proper divisors (5864848964023).

25213510420553 is a wasteful number, since it uses less digits than its factorization.

25213510420553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153273.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 25213510420553 in words is "twenty-five trillion, two hundred thirteen billion, five hundred ten million, four hundred twenty thousand, five hundred fifty-three".