55052778940 has 48 divisors (see below), whose sum is σ = 116431366464. Its totient is φ = 21864960000.

The previous prime is 55052778877. The next prime is 55052778967. The reversal of 55052778940 is 4987725055.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11464540 + ... + 11469340.

It is an arithmetic number, because the mean of its divisors is an integer number (2425653468).

Almost surely, 2^55052778940 is an apocalyptic number.

It is an amenable number.

55052778940 is an abundant number, since it is smaller than the sum of its proper divisors (61378587524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55052778940 is a wasteful number, since it uses less digits than its factorization.

55052778940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8758 (or 8756 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 55052778940 in words is "fifty-five billion, fifty-two million, seven hundred seventy-eight thousand, nine hundred forty".