52781211 has 12 divisors (see below), whose sum is σ = 87130992. Its totient is φ = 30160656.

The previous prime is 52781171. The next prime is 52781249. The reversal of 52781211 is 11218725.

It is not a de Polignac number, because 52781211 - 2⁶ = 52781147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52789211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418836 + ... + 418961.

It is an arithmetic number, because the mean of its divisors is an integer number (7260916).

Almost surely, 2^52781211 is an apocalyptic number.

52781211 is a deficient number, since it is larger than the sum of its proper divisors (34349781).

52781211 is a wasteful number, since it uses less digits than its factorization.

52781211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837810 (or 837807 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 52781211 is about 7265.0678592839. The cubic root of 52781211 is about 375.1109858158.

Adding to 52781211 its reverse (11218725), we get a palindrome (63999936).

The spelling of 52781211 in words is "fifty-two million, seven hundred eighty-one thousand, two hundred eleven".