52783731 has 144 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 24494400.

The previous prime is 52783693. The next prime is 52783789. The reversal of 52783731 is 13738725.

It is not a de Polignac number, because 52783731 - 2¹³ = 52775539 is a prime.

It is a super-2 number, since 2×52783731² = 5572244516560722, which contains 22 as substring.

Its product of digits (35280) is a multiple of the sum of its prime factors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52783331) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1702686 + ... + 1702716.

It is an arithmetic number, because the mean of its divisors is an integer number (774592).

Almost surely, 2^52783731 is an apocalyptic number.

52783731 is an abundant number, since it is smaller than the sum of its proper divisors (58757517).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52783731 is a wasteful number, since it uses less digits than its factorization.

52783731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 65 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 52783731 is about 7265.2412898678. The cubic root of 52783731 is about 375.1169555200.

It can be divided in two parts, 5278 and 3731, that added together give a palindrome (9009).

The spelling of 52783731 in words is "fifty-two million, seven hundred eighty-three thousand, seven hundred thirty-one".