53532431 has 4 divisors (see below), whose sum is σ = 55859952. Its totient is φ = 51204912.

The previous prime is 53532419. The next prime is 53532469. The reversal of 53532431 is 13423535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13423535 = 5 ⋅2684707.

It is a cyclic number.

It is not a de Polignac number, because 53532431 - 2¹⁰ = 53531407 is a prime.

It is a super-2 number, since 2×53532431² = 5731442337539522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53532431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53532131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163726 + ... + 1163771.

It is an arithmetic number, because the mean of its divisors is an integer number (13964988).

Almost surely, 2^53532431 is an apocalyptic number.

53532431 is a deficient number, since it is larger than the sum of its proper divisors (2327521).

53532431 is a wasteful number, since it uses less digits than its factorization.

53532431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327520.

The product of its digits is 5400, while the sum is 26.

The square root of 53532431 is about 7316.5860208160. The cubic root of 53532431 is about 376.8822250998.

Adding to 53532431 its reverse (13423535), we get a palindrome (66955966).

The spelling of 53532431 in words is "fifty-three million, five hundred thirty-two thousand, four hundred thirty-one".