55276760 has 128 divisors (see below), whose sum is σ = 157386240. Its totient is φ = 16972800.

The previous prime is 55276709. The next prime is 55276763. The reversal of 55276760 is 6767255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55276763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403412 + ... + 403548.

It is an arithmetic number, because the mean of its divisors is an integer number (1229580).

Almost surely, 2^55276760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55276760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78693120).

55276760 is an abundant number, since it is smaller than the sum of its proper divisors (102109480).

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

55276760 is a wasteful number, since it uses less digits than its factorization.

55276760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 55276760 is about 7434.8342281452. The cubic root of 55276760 is about 380.9320610094.

The spelling of 55276760 in words is "fifty-five million, two hundred seventy-six thousand, seven hundred sixty".