55471237026261 has 8 divisors (see below), whose sum is σ = 84527599278144. Its totient is φ = 31697849729280.

The previous prime is 55471237026241. The next prime is 55471237026323. The reversal of 55471237026261 is 16262073217455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55471237026261 - 2²³ = 55471228637653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55471237026221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320743738700 + ... + 1320743738741.

It is an arithmetic number, because the mean of its divisors is an integer number (10565949909768).

Almost surely, 2^{55471237026261} is an apocalyptic number.

It is an amenable number.

55471237026261 is a deficient number, since it is larger than the sum of its proper divisors (29056362251883).

55471237026261 is a wasteful number, since it uses less digits than its factorization.

55471237026261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641487477451.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 55471237026261 in words is "fifty-five trillion, four hundred seventy-one billion, two hundred thirty-seven million, twenty-six thousand, two hundred sixty-one".