265020550 has 48 divisors (see below), whose sum is σ = 535680000. Its totient is φ = 97178400.

The previous prime is 265020541. The next prime is 265020557. The reversal of 265020550 is 55020562.

265020550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265020557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24951 + ... + 33949.

It is an arithmetic number, because the mean of its divisors is an integer number (11160000).

Almost surely, 2^265020550 is an apocalyptic number.

265020550 is an abundant number, since it is smaller than the sum of its proper divisors (270659450).

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

265020550 is a wasteful number, since it uses less digits than its factorization.

265020550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061 (or 9056 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 265020550 is about 16279.4517720960. The cubic root of 265020550 is about 642.3324316853.

The spelling of 265020550 in words is "two hundred sixty-five million, twenty thousand, five hundred fifty".