42251097 has 8 divisors (see below), whose sum is σ = 64382656. Its totient is φ = 24143472.

The previous prime is 42251093. The next prime is 42251107. The reversal of 42251097 is 79015224.

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

It is not a de Polignac number, because 42251097 - 2² = 42251093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42251093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005958 + ... + 1005999.

It is an arithmetic number, because the mean of its divisors is an integer number (8047832).

Almost surely, 2^42251097 is an apocalyptic number.

It is an amenable number.

42251097 is a deficient number, since it is larger than the sum of its proper divisors (22131559).

42251097 is a wasteful number, since it uses less digits than its factorization.

42251097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011967.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 42251097 is about 6500.0843840676. The cubic root of 42251097 is about 348.2940027682.

The spelling of 42251097 in words is "forty-two million, two hundred fifty-one thousand, ninety-seven".