26551404552 has 64 divisors (see below), whose sum is σ = 66722123520. Its totient is φ = 8804775488.

The previous prime is 26551404497. The next prime is 26551404557. The reversal of 26551404552 is 25540415562.

It is a super-3 number, since 3×26551404552³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26551404552.

It is not an unprimeable number, because it can be changed into a prime (26551404557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3885763 + ... + 3892589.

It is an arithmetic number, because the mean of its divisors is an integer number (1042533180).

Almost surely, 2^26551404552 is an apocalyptic number.

It is an amenable number.

26551404552 is an abundant number, since it is smaller than the sum of its proper divisors (40170718968).

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

26551404552 is a wasteful number, since it uses less digits than its factorization.

26551404552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650 (or 7646 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 26551404552 in words is "twenty-six billion, five hundred fifty-one million, four hundred four thousand, five hundred fifty-two".