52531516 has 6 divisors (see below), whose sum is σ = 91930160. Its totient is φ = 26265756.

The previous prime is 52531511. The next prime is 52531559. The reversal of 52531516 is 61513525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52531511) 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 as a sum of consecutive naturals, namely, 6566436 + ... + 6566443.

Almost surely, 2^52531516 is an apocalyptic number.

It is an amenable number.

52531516 is a deficient number, since it is larger than the sum of its proper divisors (39398644).

52531516 is a wasteful number, since it uses less digits than its factorization.

52531516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132883 (or 13132881 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 52531516 is about 7247.8628574222. The cubic root of 52531516 is about 374.5185311355.

Subtracting 52531516 from its reverse (61513525), we obtain a square (8982009 = 2997²).

It can be divided in two parts, 525 and 31516, that added together give a square (32041 = 179²).

The spelling of 52531516 in words is "fifty-two million, five hundred thirty-one thousand, five hundred sixteen".