42111577 has 16 divisors (see below), whose sum is σ = 44808192. Its totient is φ = 39528720.

The previous prime is 42111569. The next prime is 42111593. The reversal of 42111577 is 77511124.

It is a cyclic number.

It is not a de Polignac number, because 42111577 - 2³ = 42111569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42111527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135252 + ... + 135562.

It is an arithmetic number, because the mean of its divisors is an integer number (2800512).

Almost surely, 2^42111577 is an apocalyptic number.

42111577 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42111577 is a deficient number, since it is larger than the sum of its proper divisors (2696615).

42111577 is a wasteful number, since it uses less digits than its factorization.

42111577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its digits is 1960, while the sum is 28.

The square root of 42111577 is about 6489.3433412018. The cubic root of 42111577 is about 347.9102055063.

The spelling of 42111577 in words is "forty-two million, one hundred eleven thousand, five hundred seventy-seven".