55042221525 has 12 divisors (see below), whose sum is σ = 91003139712. Its totient is φ = 29355851440.

The previous prime is 55042221511. The next prime is 55042221539. The reversal of 55042221525 is 52512224055.

It is a happy number.

55042221525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55042221511) and next prime (55042221539).

It is not a de Polignac number, because 55042221525 - 2¹⁰ = 55042220501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366948069 + ... + 366948218.

It is an arithmetic number, because the mean of its divisors is an integer number (7583594976).

Almost surely, 2^55042221525 is an apocalyptic number.

It is an amenable number.

55042221525 is a deficient number, since it is larger than the sum of its proper divisors (35960918187).

55042221525 is a wasteful number, since it uses less digits than its factorization.

55042221525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733896300 (or 733896295 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 55042221525 in words is "fifty-five billion, forty-two million, two hundred twenty-one thousand, five hundred twenty-five".