261525946 has 8 divisors (see below), whose sum is σ = 427951584. Its totient is φ = 118875420.

The previous prime is 261525917. The next prime is 261525947. The reversal of 261525946 is 649525162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 261525899 and 261525908.

It is not an unprimeable number, because it can be changed into a prime (261525947) 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, 5943750 + ... + 5943793.

It is an arithmetic number, because the mean of its divisors is an integer number (53493948).

Almost surely, 2^261525946 is an apocalyptic number.

261525946 is a deficient number, since it is larger than the sum of its proper divisors (166425638).

261525946 is a wasteful number, since it uses less digits than its factorization.

261525946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11887556.

The product of its digits is 129600, while the sum is 40.

The square root of 261525946 is about 16171.7638493765. The cubic root of 261525946 is about 639.4966305635.

It can be divided in two parts, 2615 and 25946, that added together give a 4-th power (28561 = 13⁴).

The spelling of 261525946 in words is "two hundred sixty-one million, five hundred twenty-five thousand, nine hundred forty-six".