53523020212 has 6 divisors (see below), whose sum is σ = 93665285378. Its totient is φ = 26761510104.

The previous prime is 53523020207. The next prime is 53523020293. The reversal of 53523020212 is 21202032535.

It can be written as a sum of positive squares in only one way, i.e., 29888877456 + 23634142756 = 172884^2 + 153734^2 .

It is a super-2 number, since 2×53523020212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6690377523 + ... + 6690377530.

Almost surely, 2^53523020212 is an apocalyptic number.

It is an amenable number.

53523020212 is a deficient number, since it is larger than the sum of its proper divisors (40142265166).

53523020212 is a wasteful number, since it uses less digits than its factorization.

53523020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13380755057 (or 13380755055 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 53523020212 its reverse (21202032535), we get a palindrome (74725052747).

The spelling of 53523020212 in words is "fifty-three billion, five hundred twenty-three million, twenty thousand, two hundred twelve".