55277722501 has 4 divisors (see below), whose sum is σ = 55388500000. Its totient is φ = 55166945004.

The previous prime is 55277722499. The next prime is 55277722547. The reversal of 55277722501 is 10522777255.

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 55277722501 - 2¹ = 55277722499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277722601) 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, 55388001 + ... + 55388998.

It is an arithmetic number, because the mean of its divisors is an integer number (13847125000).

Almost surely, 2^55277722501 is an apocalyptic number.

It is an amenable number.

55277722501 is a deficient number, since it is larger than the sum of its proper divisors (110777499).

55277722501 is a wasteful number, since it uses less digits than its factorization.

55277722501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110777498.

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 55277722501 in words is "fifty-five billion, two hundred seventy-seven million, seven hundred twenty-two thousand, five hundred one".