52507418 has 16 divisors (see below), whose sum is σ = 80520480. Its totient is φ = 25670736.

The previous prime is 52507417. The next prime is 52507489. The reversal of 52507418 is 81470525.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52507417) 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, 39521 + ... + 40827.

It is an arithmetic number, because the mean of its divisors is an integer number (5032530).

Almost surely, 2^52507418 is an apocalyptic number.

52507418 is a deficient number, since it is larger than the sum of its proper divisors (28013062).

52507418 is a wasteful number, since it uses less digits than its factorization.

52507418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 52507418 is about 7246.2002456460. The cubic root of 52507418 is about 374.4612542305.

It can be divided in two parts, 52507 and 418, that added together give a palindrome (52925).

The spelling of 52507418 in words is "fifty-two million, five hundred seven thousand, four hundred eighteen".