265025263890 has 64 divisors (see below), whose sum is σ = 668443476096. Its totient is φ = 67164152832.

The previous prime is 265025263889. The next prime is 265025263897. The reversal of 265025263890 is 98362520562.

It is not an unprimeable number, because it can be changed into a prime (265025263897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2728567 + ... + 2824026.

It is an arithmetic number, because the mean of its divisors is an integer number (10444429314).

Almost surely, 2^265025263890 is an apocalyptic number.

265025263890 is an abundant number, since it is smaller than the sum of its proper divisors (403418212206).

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

265025263890 is a wasteful number, since it uses less digits than its factorization.

265025263890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552683.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 265025263890 in words is "two hundred sixty-five billion, twenty-five million, two hundred sixty-three thousand, eight hundred ninety".