25222464740 has 24 divisors (see below), whose sum is σ = 57782374272. Its totient is φ = 9171805280.

The previous prime is 25222464737. The next prime is 25222464767. The reversal of 25222464740 is 4746422252.

It is a junction number, because it is equal to n+sod(n) for n = 25222464694 and 25222464703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57323564 + ... + 57324003.

It is an arithmetic number, because the mean of its divisors is an integer number (2407598928).

Almost surely, 2^25222464740 is an apocalyptic number.

25222464740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25222464740 is an abundant number, since it is smaller than the sum of its proper divisors (32559909532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25222464740 is a wasteful number, since it uses less digits than its factorization.

25222464740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114647587 (or 114647585 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 25222464740 its reverse (4746422252), we get a palindrome (29968886992).

The spelling of 25222464740 in words is "twenty-five billion, two hundred twenty-two million, four hundred sixty-four thousand, seven hundred forty".