53536431 has 16 divisors (see below), whose sum is σ = 78511104. Its totient is φ = 32243424.

The previous prime is 53536429. The next prime is 53536453. The reversal of 53536431 is 13463535.

It is a happy number.

It is not a de Polignac number, because 53536431 - 2¹ = 53536429 is a prime.

It is a super-2 number, since 2×53536431² = 5732298888435522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53536481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12771 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (4906944).

Almost surely, 2^53536431 is an apocalyptic number.

53536431 is a deficient number, since it is larger than the sum of its proper divisors (24974673).

53536431 is a wasteful number, since it uses less digits than its factorization.

53536431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29270.

The product of its digits is 16200, while the sum is 30.

The square root of 53536431 is about 7316.8593672422. The cubic root of 53536431 is about 376.8916118791.

Adding to 53536431 its reverse (13463535), we get a palindrome (66999966).

The spelling of 53536431 in words is "fifty-three million, five hundred thirty-six thousand, four hundred thirty-one".