213061552 has 40 divisors (see below), whose sum is σ = 452917440. Its totient is φ = 96290880.

The previous prime is 213061549. The next prime is 213061553. The reversal of 213061552 is 255160312.

213061552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213061553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28123 + ... + 34885.

It is an arithmetic number, because the mean of its divisors is an integer number (11322936).

Almost surely, 2^213061552 is an apocalyptic number.

213061552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213061552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226458720).

213061552 is an abundant number, since it is smaller than the sum of its proper divisors (239855888).

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

213061552 is a wasteful number, since it uses less digits than its factorization.

213061552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961 (or 6955 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 213061552 is about 14596.6281037779. The cubic root of 213061552 is about 597.2667829282.

The spelling of 213061552 in words is "two hundred thirteen million, sixty-one thousand, five hundred fifty-two".