55770009493 has 8 divisors (see below), whose sum is σ = 60853818816. Its totient is φ = 50688501600.

The previous prime is 55770009469. The next prime is 55770009527. The reversal of 55770009493 is 39490007755.

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

It is not a de Polignac number, because 55770009493 - 2²¹ = 55767912341 is a prime.

It is a super-2 number, since 2×55770009493² (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 (55770009793) 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, 524488 + ... + 621793.

It is an arithmetic number, because the mean of its divisors is an integer number (7606727352).

Almost surely, 2^55770009493 is an apocalyptic number.

It is an amenable number.

55770009493 is a deficient number, since it is larger than the sum of its proper divisors (5083809323).

55770009493 is a wasteful number, since it uses less digits than its factorization.

55770009493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150715.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The spelling of 55770009493 in words is "fifty-five billion, seven hundred seventy million, nine thousand, four hundred ninety-three".