265902461 has 12 divisors (see below), whose sum is σ = 300177276. Its totient is φ = 235192320.

The previous prime is 265902451. The next prime is 265902463. The reversal of 265902461 is 164209562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152053561 + 113848900 = 12331^2 + 10670^2 .

It is not a de Polignac number, because 265902461 - 2²² = 261708157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265902463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25220 + ... + 34173.

It is an arithmetic number, because the mean of its divisors is an integer number (25014773).

Almost surely, 2^265902461 is an apocalyptic number.

It is an amenable number.

265902461 is a deficient number, since it is larger than the sum of its proper divisors (34274815).

265902461 is a wasteful number, since it uses less digits than its factorization.

265902461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59452 (or 59441 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 265902461 is about 16306.5159062260. The cubic root of 265902461 is about 643.0441410681.

The spelling of 265902461 in words is "two hundred sixty-five million, nine hundred two thousand, four hundred sixty-one".