55772485549 has 8 divisors (see below), whose sum is σ = 61526338560. Its totient is φ = 50132570400.

The previous prime is 55772485529. The next prime is 55772485577. The reversal of 55772485549 is 94558427755.

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 55772485549 - 2⁷ = 55772485421 is a prime.

It is a super-2 number, since 2×55772485549² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55772485529) 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, 28483437 + ... + 28485394.

It is an arithmetic number, because the mean of its divisors is an integer number (7690792320).

Almost surely, 2^55772485549 is an apocalyptic number.

It is an amenable number.

55772485549 is a deficient number, since it is larger than the sum of its proper divisors (5753853011).

55772485549 is a wasteful number, since it uses less digits than its factorization.

55772485549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56968931.

The product of its digits is 70560000, while the sum is 61.

The spelling of 55772485549 in words is "fifty-five billion, seven hundred seventy-two million, four hundred eighty-five thousand, five hundred forty-nine".