25220734 has 16 divisors (see below), whose sum is σ = 47166336. Its totient is φ = 9826200.

The previous prime is 25220729. The next prime is 25220753. The reversal of 25220734 is 43702252.

It is a junction number, because it is equal to n+sod(n) for n = 25220699 and 25220708.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 81732 + ... + 82039.

It is an arithmetic number, because the mean of its divisors is an integer number (2947896).

Almost surely, 2^25220734 is an apocalyptic number.

25220734 is a deficient number, since it is larger than the sum of its proper divisors (21945602).

25220734 is a wasteful number, since it uses less digits than its factorization.

25220734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163791.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 25220734 is about 5022.0248904202. The cubic root of 25220734 is about 293.2598269098.

Adding to 25220734 its reverse (43702252), we get a palindrome (68922986).

The spelling of 25220734 in words is "twenty-five million, two hundred twenty thousand, seven hundred thirty-four".