25222303545 has 64 divisors (see below), whose sum is σ = 43386624000. Its totient is φ = 12483717120.

The previous prime is 25222303543. The next prime is 25222303549. The reversal of 25222303545 is 54530322252.

It is not a de Polignac number, because 25222303545 - 2¹ = 25222303543 is a prime.

It is a super-2 number, since 2×25222303545² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25222303543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2002989 + ... + 2015541.

It is an arithmetic number, because the mean of its divisors is an integer number (677916000).

Almost surely, 2^25222303545 is an apocalyptic number.

It is an amenable number.

25222303545 is a deficient number, since it is larger than the sum of its proper divisors (18164320455).

25222303545 is a wasteful number, since it uses less digits than its factorization.

25222303545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12770.

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 25222303545 its reverse (54530322252), we get a palindrome (79752625797).

The spelling of 25222303545 in words is "twenty-five billion, two hundred twenty-two million, three hundred three thousand, five hundred forty-five".