442155125 has 16 divisors (see below), whose sum is σ = 584271792. Its totient is φ = 332915200.

The previous prime is 442155107. The next prime is 442155149. The reversal of 442155125 is 521551244.

It can be written as a sum of positive squares in 8 ways, for example, as 242300356 + 199854769 = 15566^2 + 14137^2 .

It is not a de Polignac number, because 442155125 - 2¹⁰ = 442154101 is a prime.

It is a Duffinian number.

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, 101912 + ... + 106161.

It is an arithmetic number, because the mean of its divisors is an integer number (36516987).

Almost surely, 2^442155125 is an apocalyptic number.

It is an amenable number.

442155125 is a deficient number, since it is larger than the sum of its proper divisors (142116667).

442155125 is a wasteful number, since it uses less digits than its factorization.

442155125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208105 (or 208095 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 442155125 is about 21027.4849898888. The cubic root of 442155125 is about 761.8302638360.

The spelling of 442155125 in words is "four hundred forty-two million, one hundred fifty-five thousand, one hundred twenty-five".