261112052 has 12 divisors (see below), whose sum is σ = 464691360. Its totient is φ = 128343096.

The previous prime is 261112051. The next prime is 261112057. The reversal of 261112052 is 250211162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261112051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552968 + ... + 553439.

It is an arithmetic number, because the mean of its divisors is an integer number (38724280).

Almost surely, 2^261112052 is an apocalyptic number.

It is an amenable number.

261112052 is a deficient number, since it is larger than the sum of its proper divisors (203579308).

261112052 is a wasteful number, since it uses less digits than its factorization.

261112052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106470 (or 1106468 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 261112052 is about 16158.9619716119. The cubic root of 261112052 is about 639.1590941725.

The spelling of 261112052 in words is "two hundred sixty-one million, one hundred twelve thousand, fifty-two".