42051757 has 8 divisors (see below), whose sum is σ = 45933120. Its totient is φ = 38180160.

The previous prime is 42051703. The next prime is 42051767. The reversal of 42051757 is 75715024.

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 42051757 - 2¹⁹ = 41527469 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 (42051767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8869 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (5741640).

Almost surely, 2^42051757 is an apocalyptic number.

It is an amenable number.

42051757 is a deficient number, since it is larger than the sum of its proper divisors (3881363).

42051757 is a wasteful number, since it uses less digits than its factorization.

42051757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 42051757 is about 6484.7326082114. The cubic root of 42051757 is about 347.7453905684.

It can be divided in two parts, 4 and 2051757, that multiplied together give a palindrome (8207028).

The spelling of 42051757 in words is "forty-two million, fifty-one thousand, seven hundred fifty-seven".