42225087 has 24 divisors (see below), whose sum is σ = 60082176. Its totient is φ = 26372304.

The previous prime is 42225083. The next prime is 42225091. The reversal of 42225087 is 78052224.

It is an interprime number because it is at equal distance from previous prime (42225083) and next prime (42225091).

It is not a de Polignac number, because 42225087 - 2² = 42225083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42225083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137388 + ... + 137694.

It is an arithmetic number, because the mean of its divisors is an integer number (2503424).

Almost surely, 2^42225087 is an apocalyptic number.

42225087 is a deficient number, since it is larger than the sum of its proper divisors (17857089).

42225087 is a wasteful number, since it uses less digits than its factorization.

42225087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 42225087 is about 6498.0833327990. The cubic root of 42225087 is about 348.2225175505. Note that the first 3 decimals are identical.

The spelling of 42225087 in words is "forty-two million, two hundred twenty-five thousand, eighty-seven".