265563125655450 has 96 divisors (see below), whose sum is σ = 770186000702976. Its totient is φ = 59288511764160.

The previous prime is 265563125655439. The next prime is 265563125655461. The reversal of 265563125655450 is 54556521365562.

It is an interprime number because it is at equal distance from previous prime (265563125655439) and next prime (265563125655461).

It is a super-2 number, since 2×265563125655450² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2940853252 + ... + 2940943551.

It is an arithmetic number, because the mean of its divisors is an integer number (8022770840656).

Almost surely, 2^{265563125655450} is an apocalyptic number.

265563125655450 is an abundant number, since it is smaller than the sum of its proper divisors (504622875047526).

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

265563125655450 is a wasteful number, since it uses less digits than its factorization.

265563125655450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881796868 (or 5881796863 counting only the distinct ones).

The product of its (nonzero) digits is 162000000, while the sum is 60.

The spelling of 265563125655450 in words is "two hundred sixty-five trillion, five hundred sixty-three billion, one hundred twenty-five million, six hundred fifty-five thousand, four hundred fifty".