52403130 has 48 divisors (see below), whose sum is σ = 146732040. Its totient is φ = 12898944.

The previous prime is 52403119. The next prime is 52403171. The reversal of 52403130 is 3130425.

It can be written as a sum of positive squares in 4 ways, for example, as 18844281 + 33558849 = 4341^2 + 5793^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21225 + ... + 23564.

Almost surely, 2^52403130 is an apocalyptic number.

52403130 is an abundant number, since it is smaller than the sum of its proper divisors (94328910).

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

52403130 is a wasteful number, since it uses less digits than its factorization.

52403130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44815 (or 44812 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 52403130 is about 7239.0006216328. Note that the first 3 decimals coincide. The cubic root of 52403130 is about 374.2131769131.

Adding to 52403130 its reverse (3130425), we get a palindrome (55533555).

The spelling of 52403130 in words is "fifty-two million, four hundred three thousand, one hundred thirty".