265550256562 has 4 divisors (see below), whose sum is σ = 398325384846. Its totient is φ = 132775128280.

The previous prime is 265550256551. The next prime is 265550256611. The reversal of 265550256562 is 265652055562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 265652055562 = 2 ⋅132826027781.

It can be written as a sum of positive squares in only one way, i.e., 167036507401 + 98513749161 = 408701^2 + 313869^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66387564139 + ... + 66387564142.

Almost surely, 2^265550256562 is an apocalyptic number.

265550256562 is a deficient number, since it is larger than the sum of its proper divisors (132775128284).

265550256562 is a wasteful number, since it uses less digits than its factorization.

265550256562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132775128283.

The product of its (nonzero) digits is 5400000, while the sum is 49.

The spelling of 265550256562 in words is "two hundred sixty-five billion, five hundred fifty million, two hundred fifty-six thousand, five hundred sixty-two".