55252500277780 has 48 divisors (see below), whose sum is σ = 125127533381760. Its totient is φ = 20372861317248.

The previous prime is 55252500277753. The next prime is 55252500277831. The reversal of 55252500277780 is 8777200525255.

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, 145966150 + ... + 146344189.

It is an arithmetic number, because the mean of its divisors is an integer number (2606823612120).

Almost surely, 2^{55252500277780} is an apocalyptic number.

It is an amenable number.

55252500277780 is an abundant number, since it is smaller than the sum of its proper divisors (69875033103980).

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

55252500277780 is a wasteful number, since it uses less digits than its factorization.

55252500277780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292311088 (or 292311086 counting only the distinct ones).

The product of its (nonzero) digits is 13720000, while the sum is 55.

The spelling of 55252500277780 in words is "fifty-five trillion, two hundred fifty-two billion, five hundred million, two hundred seventy-seven thousand, seven hundred eighty".