265403952 has 100 divisors (see below), whose sum is σ = 838033416. Its totient is φ = 80421120.

The previous prime is 265403921. The next prime is 265403953. The reversal of 265403952 is 259304562.

265403952 is a `hidden beast` number, since 26 + 540 + 3 + 95 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (265403953) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4948 + ... + 23564.

Almost surely, 2^265403952 is an apocalyptic number.

265403952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265403952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419016708).

265403952 is an abundant number, since it is smaller than the sum of its proper divisors (572629464).

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

265403952 is a wasteful number, since it uses less digits than its factorization.

265403952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18648 (or 18633 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 265403952 is about 16291.2231584986. The cubic root of 265403952 is about 642.6420339344.

The spelling of 265403952 in words is "two hundred sixty-five million, four hundred three thousand, nine hundred fifty-two".