261083532 has 24 divisors (see below), whose sum is σ = 611044672. Its totient is φ = 86763600.

The previous prime is 261083497. The next prime is 261083539. The reversal of 261083532 is 235380162.

It is a super-2 number, since 2×261083532² = 136329221363190048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 261083532.

It is not an unprimeable number, because it can be changed into a prime (261083539) 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, 28894 + ... + 36837.

Almost surely, 2^261083532 is an apocalyptic number.

It is an amenable number.

261083532 is an abundant number, since it is smaller than the sum of its proper divisors (349961140).

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

261083532 is a wasteful number, since it uses less digits than its factorization.

261083532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66069 (or 66067 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 261083532 is about 16158.0794650850. The cubic root of 261083532 is about 639.1358225784.

The spelling of 261083532 in words is "two hundred sixty-one million, eighty-three thousand, five hundred thirty-two".