211280252 has 24 divisors (see below), whose sum is σ = 382273920. Its totient is φ = 102070080.

The previous prime is 211280243. The next prime is 211280263. The reversal of 211280252 is 252082112.

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, 122774 + ... + 124482.

It is an arithmetic number, because the mean of its divisors is an integer number (15928080).

Almost surely, 2^211280252 is an apocalyptic number.

It is an amenable number.

211280252 is a deficient number, since it is larger than the sum of its proper divisors (170993668).

211280252 is a wasteful number, since it uses less digits than its factorization.

211280252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 211280252 is about 14535.4825169308. The cubic root of 211280252 is about 595.5976406847.

The spelling of 211280252 in words is "two hundred eleven million, two hundred eighty thousand, two hundred fifty-two".