53211142 has 16 divisors (see below), whose sum is σ = 81123120. Its totient is φ = 26173312.

The previous prime is 53211131. The next prime is 53211157. The reversal of 53211142 is 24111235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40833 + ... + 42115.

It is an arithmetic number, because the mean of its divisors is an integer number (5070195).

Almost surely, 2^53211142 is an apocalyptic number.

53211142 is a deficient number, since it is larger than the sum of its proper divisors (27911978).

53211142 is a wasteful number, since it uses less digits than its factorization.

53211142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607.

The product of its digits is 240, while the sum is 19.

The square root of 53211142 is about 7294.5967674711. The cubic root of 53211142 is about 376.1267256182.

Adding to 53211142 its reverse (24111235), we get a palindrome (77322377).

The spelling of 53211142 in words is "fifty-three million, two hundred eleven thousand, one hundred forty-two".