25222743 has 72 divisors (see below), whose sum is σ = 47503872. Its totient is φ = 12602304.

The previous prime is 25222727. The next prime is 25222777. The reversal of 25222743 is 34722252.

It is not a de Polignac number, because 25222743 - 2⁴ = 25222727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 244830 + ... + 244932.

It is an arithmetic number, because the mean of its divisors is an integer number (659776).

Almost surely, 2^25222743 is an apocalyptic number.

25222743 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25222743 is a deficient number, since it is larger than the sum of its proper divisors (22281129).

25222743 is a wasteful number, since it uses less digits than its factorization.

25222743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 149 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 25222743 is about 5022.2249053582. The cubic root of 25222743 is about 293.2676134047.

Adding to 25222743 its reverse (34722252), we get a palindrome (59944995).

It can be divided in two parts, 252 and 22743, that multiplied together give a square (5731236 = 2394²).

The spelling of 25222743 in words is "twenty-five million, two hundred twenty-two thousand, seven hundred forty-three".