42501157 has 8 divisors (see below), whose sum is σ = 45779360. Its totient is φ = 39327120.

The previous prime is 42501091. The next prime is 42501161. The reversal of 42501157 is 75110524.

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 42501157 - 2¹⁵ = 42468389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501757) 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, 25194 + ... + 26827.

It is an arithmetic number, because the mean of its divisors is an integer number (5722420).

Almost surely, 2^42501157 is an apocalyptic number.

It is an amenable number.

42501157 is a deficient number, since it is larger than the sum of its proper divisors (3278203).

42501157 is a wasteful number, since it uses less digits than its factorization.

42501157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52083.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 42501157 is about 6519.2911424479. The cubic root of 42501157 is about 348.9797691083.

The spelling of 42501157 in words is "forty-two million, five hundred one thousand, one hundred fifty-seven".