52490222 has 4 divisors (see below), whose sum is σ = 78735336. Its totient is φ = 26245110.

The previous prime is 52490219. The next prime is 52490227. The reversal of 52490222 is 22209425.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 52490191 and 52490200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52490227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13122554 + ... + 13122557.

It is an arithmetic number, because the mean of its divisors is an integer number (19683834).

Almost surely, 2^52490222 is an apocalyptic number.

52490222 is a deficient number, since it is larger than the sum of its proper divisors (26245114).

52490222 is a wasteful number, since it uses less digits than its factorization.

52490222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26245113.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 52490222 is about 7245.0135955704. The cubic root of 52490222 is about 374.4203715067.

Adding to 52490222 its reverse (22209425), we get a palindrome (74699647).

The spelling of 52490222 in words is "fifty-two million, four hundred ninety thousand, two hundred twenty-two".