261260252 has 24 divisors (see below), whose sum is σ = 499426032. Its totient is φ = 118598400.

The previous prime is 261260249. The next prime is 261260257. The reversal of 261260252 is 252062162.

261260252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261260257) 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, 34052 + ... + 41012.

It is an arithmetic number, because the mean of its divisors is an integer number (20809418).

Almost surely, 2^261260252 is an apocalyptic number.

261260252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

261260252 is a deficient number, since it is larger than the sum of its proper divisors (238165780).

261260252 is a wasteful number, since it uses less digits than its factorization.

261260252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829 (or 7827 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 261260252 is about 16163.5470117174. The cubic root of 261260252 is about 639.2799943275.

The spelling of 261260252 in words is "two hundred sixty-one million, two hundred sixty thousand, two hundred fifty-two".