57245332212 has 72 divisors (see below), whose sum is σ = 147854659680. Its totient is φ = 18669309120.

The previous prime is 57245332141. The next prime is 57245332229. The reversal of 57245332212 is 21223354275.

57245332212 is a `hidden beast` number, since 5 + 72 + 45 + 332 + 212 = 666.

57245332212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384298 + ... + 512030.

It is an arithmetic number, because the mean of its divisors is an integer number (2053536940).

Almost surely, 2^57245332212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57245332212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73927329840).

57245332212 is an abundant number, since it is smaller than the sum of its proper divisors (90609327468).

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

57245332212 is a wasteful number, since it uses less digits than its factorization.

57245332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128013 (or 128008 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

Adding to 57245332212 its reverse (21223354275), we get a palindrome (78468686487).

The spelling of 57245332212 in words is "fifty-seven billion, two hundred forty-five million, three hundred thirty-two thousand, two hundred twelve".