55020225251 has 8 divisors (see below), whose sum is σ = 57926377680. Its totient is φ = 52115107968.

The previous prime is 55020225241. The next prime is 55020225257. The reversal of 55020225251 is 15252202055.

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

It is a cyclic number.

It is not a de Polignac number, because 55020225251 - 2⁶ = 55020225187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55020225257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148466 + ... + 363431.

It is an arithmetic number, because the mean of its divisors is an integer number (7240797210).

Almost surely, 2^55020225251 is an apocalyptic number.

55020225251 is a deficient number, since it is larger than the sum of its proper divisors (2906152429).

55020225251 is a wasteful number, since it uses less digits than its factorization.

55020225251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517573.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 55020225251 in words is "fifty-five billion, twenty million, two hundred twenty-five thousand, two hundred fifty-one".