212525541 has 24 divisors (see below), whose sum is σ = 314421120. Its totient is φ = 138289536.

The previous prime is 212525531. The next prime is 212525549. The reversal of 212525541 is 145525212.

It is not a de Polignac number, because 212525541 - 2⁶ = 212525477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212525549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66580 + ... + 69698.

It is an arithmetic number, because the mean of its divisors is an integer number (13100880).

Almost surely, 2^212525541 is an apocalyptic number.

It is an amenable number.

212525541 is a deficient number, since it is larger than the sum of its proper divisors (101895579).

212525541 is a wasteful number, since it uses less digits than its factorization.

212525541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3302 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 212525541 is about 14578.2557598637. The cubic root of 212525541 is about 596.7655030484.

The spelling of 212525541 in words is "two hundred twelve million, five hundred twenty-five thousand, five hundred forty-one".