42251357 has 8 divisors (see below), whose sum is σ = 44067072. Its totient is φ = 40464000.

The previous prime is 42251353. The next prime is 42251359. The reversal of 42251357 is 75315224.

It is a happy number.

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 42251357 - 2² = 42251353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251351) 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, 4019 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (5508384).

Almost surely, 2^42251357 is an apocalyptic number.

It is an amenable number.

42251357 is a deficient number, since it is larger than the sum of its proper divisors (1815715).

42251357 is a wasteful number, since it uses less digits than its factorization.

42251357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179.

The product of its digits is 8400, while the sum is 29.

The square root of 42251357 is about 6500.1043837772. The cubic root of 42251357 is about 348.2947171974.

The spelling of 42251357 in words is "forty-two million, two hundred fifty-one thousand, three hundred fifty-seven".