253501424 has 20 divisors (see below), whose sum is σ = 535810200. Its totient is φ = 115227840.

The previous prime is 253501403. The next prime is 253501513. The reversal of 253501424 is 424105352.

It is a happy number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 253501393 and 253501402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719999 + ... + 720350.

It is an arithmetic number, because the mean of its divisors is an integer number (26790510).

Almost surely, 2^253501424 is an apocalyptic number.

It is an amenable number.

253501424 is an abundant number, since it is smaller than the sum of its proper divisors (282308776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253501424 is a wasteful number, since it uses less digits than its factorization.

253501424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440368 (or 1440362 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 253501424 is about 15921.7280469175. The cubic root of 253501424 is about 632.8879123568.

Adding to 253501424 its reverse (424105352), we get a palindrome (677606776).

The spelling of 253501424 in words is "two hundred fifty-three million, five hundred one thousand, four hundred twenty-four".