55780002489814 has 8 divisors (see below), whose sum is σ = 83918282678568. Its totient is φ = 27807241596960.

The previous prime is 55780002489593. The next prime is 55780002489817. The reversal of 55780002489814 is 41898420008755.

It is a happy number.

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

It is a super-2 number, since 2×55780002489814² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55780002489817) 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, 41379823132 + ... + 41379824479.

It is an arithmetic number, because the mean of its divisors is an integer number (10489785334821).

Almost surely, 2^{55780002489814} is an apocalyptic number.

55780002489814 is a deficient number, since it is larger than the sum of its proper divisors (28138280188754).

55780002489814 is a wasteful number, since it uses less digits than its factorization.

55780002489814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82759647950.

The product of its (nonzero) digits is 25804800, while the sum is 61.

The spelling of 55780002489814 in words is "fifty-five trillion, seven hundred eighty billion, two million, four hundred eighty-nine thousand, eight hundred fourteen".