265525140402 has 96 divisors (see below), whose sum is σ = 627270134400. Its totient is φ = 80835439104.

The previous prime is 265525140301. The next prime is 265525140409. The reversal of 265525140402 is 204041525562.

265525140402 is a `hidden beast` number, since 2 + 65 + 52 + 5 + 140 + 402 = 666.

265525140402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (265525140409) 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 47 ways as a sum of consecutive naturals, for example, 4260099 + ... + 4321977.

It is an arithmetic number, because the mean of its divisors is an integer number (6534063900).

Almost surely, 2^265525140402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265525140402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313635067200).

265525140402 is an abundant number, since it is smaller than the sum of its proper divisors (361744993998).

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

265525140402 is a wasteful number, since it uses less digits than its factorization.

265525140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62320 (or 62317 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 265525140402 its reverse (204041525562), we get a palindrome (469566665964).

The spelling of 265525140402 in words is "two hundred sixty-five billion, five hundred twenty-five million, one hundred forty thousand, four hundred two".