55056551761 has 4 divisors (see below), whose sum is σ = 55831996224. Its totient is φ = 54281107300.

The previous prime is 55056551741. The next prime is 55056551773. The reversal of 55056551761 is 16715565055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55056551761 - 2¹³ = 55056543569 is a prime.

It is a super-2 number, since 2×55056551761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55056551741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387722125 + ... + 387722266.

It is an arithmetic number, because the mean of its divisors is an integer number (13957999056).

Almost surely, 2^55056551761 is an apocalyptic number.

It is an amenable number.

55056551761 is a deficient number, since it is larger than the sum of its proper divisors (775444463).

55056551761 is an equidigital number, since it uses as much as digits as its factorization.

55056551761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775444462.

The product of its (nonzero) digits is 787500, while the sum is 46.

The spelling of 55056551761 in words is "fifty-five billion, fifty-six million, five hundred fifty-one thousand, seven hundred sixty-one".