55250305302780 has 72 divisors (see below), whose sum is σ = 191534391720672. Its totient is φ = 12628641211776.

The previous prime is 55250305302713. The next prime is 55250305302793. The reversal of 55250305302780 is 8720350305255.

It is a happy number.

55250305302780 is a `hidden beast` number, since 5 + 5 + 2 + 5 + 0 + 30 + 530 + 2 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21924723067 + ... + 21924725586.

Almost surely, 2^{55250305302780} is an apocalyptic number.

It is an amenable number.

55250305302780 is an abundant number, since it is smaller than the sum of its proper divisors (136284086417892).

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

55250305302780 is a wasteful number, since it uses less digits than its factorization.

55250305302780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43849448675 (or 43849448670 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 55250305302780 in words is "fifty-five trillion, two hundred fifty billion, three hundred five million, three hundred two thousand, seven hundred eighty".