25220324 has 6 divisors (see below), whose sum is σ = 44135574. Its totient is φ = 12610160.

The previous prime is 25220303. The next prime is 25220339. The reversal of 25220324 is 42302252.

It can be written as a sum of positive squares in only one way, i.e., 25180324 + 40000 = 5018^2 + 200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25220296 and 25220305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152537 + ... + 3152544.

It is an arithmetic number, because the mean of its divisors is an integer number (7355929).

Almost surely, 2^25220324 is an apocalyptic number.

It is an amenable number.

25220324 is a deficient number, since it is larger than the sum of its proper divisors (18915250).

25220324 is a wasteful number, since it uses less digits than its factorization.

25220324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305085 (or 6305083 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25220324 is about 5021.9840700663. The cubic root of 25220324 is about 293.2582377784.

Adding to 25220324 its reverse (42302252), we get a palindrome (67522576).

The spelling of 25220324 in words is "twenty-five million, two hundred twenty thousand, three hundred twenty-four".