53130242 has 16 divisors (see below), whose sum is σ = 87804864. Its totient is φ = 23910000.

The previous prime is 53130199. The next prime is 53130247. The reversal of 53130242 is 24203135.

It is a happy number.

It is a super-2 number, since 2×53130242² = 5645645229957128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53130247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9734 + ... + 14177.

It is an arithmetic number, because the mean of its divisors is an integer number (5487804).

Almost surely, 2^53130242 is an apocalyptic number.

53130242 is a deficient number, since it is larger than the sum of its proper divisors (34674622).

53130242 is a wasteful number, since it uses less digits than its factorization.

53130242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24025.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53130242 is about 7289.0494579197. The cubic root of 53130242 is about 375.9360131420.

Adding to 53130242 its reverse (24203135), we get a palindrome (77333377).

The spelling of 53130242 in words is "fifty-three million, one hundred thirty thousand, two hundred forty-two".