52812486 has 40 divisors (see below), whose sum is σ = 120591504. Its totient is φ = 17269200.

The previous prime is 52812481. The next prime is 52812491. The reversal of 52812486 is 68421825.

52812486 is a `hidden beast` number, since 528 + 124 + 8 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (52812481) and next prime (52812491).

It is a self number, because there is not a number n which added to its sum of digits gives 52812486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52812481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5511 + ... + 11661.

Almost surely, 2^52812486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52812486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60295752).

52812486 is an abundant number, since it is smaller than the sum of its proper divisors (67779018).

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

52812486 is a wasteful number, since it uses less digits than its factorization.

52812486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218 (or 6209 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 52812486 is about 7267.2199636450. The cubic root of 52812486 is about 375.1850606585.

The spelling of 52812486 in words is "fifty-two million, eight hundred twelve thousand, four hundred eighty-six".