55776360429261 has 12 divisors (see below), whose sum is σ = 82280021059392. Its totient is φ = 36393086237256.

The previous prime is 55776360429221. The next prime is 55776360429271. The reversal of 55776360429261 is 16292406367755.

55776360429261 is a `hidden beast` number, since 5 + 5 + 7 + 7 + 6 + 360 + 4 + 2 + 9 + 261 = 666.

It is not a de Polignac number, because 55776360429261 - 2³³ = 55767770494669 is a prime.

It is a super-2 number, since 2×55776360429261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55776360429221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65929503631 + ... + 65929504476.

It is an arithmetic number, because the mean of its divisors is an integer number (6856668421616).

Almost surely, 2^{55776360429261} is an apocalyptic number.

It is an amenable number.

55776360429261 is a deficient number, since it is larger than the sum of its proper divisors (26503660630131).

55776360429261 is a wasteful number, since it uses less digits than its factorization.

55776360429261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131859008160 (or 131859008157 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 63.

The spelling of 55776360429261 in words is "fifty-five trillion, seven hundred seventy-six billion, three hundred sixty million, four hundred twenty-nine thousand, two hundred sixty-one".