52631330 has 16 divisors (see below), whose sum is σ = 99722880. Its totient is φ = 19944432.

The previous prime is 52631261. The next prime is 52631339. The reversal of 52631330 is 3313625.

It is a junction number, because it is equal to n+sod(n) for n = 52631296 and 52631305.

It is not an unprimeable number, because it can be changed into a prime (52631339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138314 + ... + 138693.

It is an arithmetic number, because the mean of its divisors is an integer number (6232680).

Almost surely, 2^52631330 is an apocalyptic number.

52631330 is a deficient number, since it is larger than the sum of its proper divisors (47091550).

52631330 is a wasteful number, since it uses less digits than its factorization.

52631330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277033.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 52631330 is about 7254.7453435665. The cubic root of 52631330 is about 374.7555859178.

Adding to 52631330 its reverse (3313625), we get a palindrome (55944955).

It can be divided in two parts, 526313 and 30, that multiplied together give a triangular number (15789390 = T₅₆₁₉).

The spelling of 52631330 in words is "fifty-two million, six hundred thirty-one thousand, three hundred thirty".