55225677477 has 8 divisors (see below), whose sum is σ = 76009534720. Its totient is φ = 35629469280.

The previous prime is 55225677473. The next prime is 55225677509. The reversal of 55225677477 is 77477652255.

It is a happy number.

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

It is not a de Polignac number, because 55225677477 - 2² = 55225677473 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 (55225677473) 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, 296912152 + ... + 296912337.

It is an arithmetic number, because the mean of its divisors is an integer number (9501191840).

Almost surely, 2^55225677477 is an apocalyptic number.

It is an amenable number.

55225677477 is a deficient number, since it is larger than the sum of its proper divisors (20783857243).

55225677477 is a wasteful number, since it uses less digits than its factorization.

55225677477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593824523.

The product of its digits is 28812000, while the sum is 57.

The spelling of 55225677477 in words is "fifty-five billion, two hundred twenty-five million, six hundred seventy-seven thousand, four hundred seventy-seven".