42751775 has 12 divisors (see below), whose sum is σ = 57831864. Its totient is φ = 31092000.

The previous prime is 42751769. The next prime is 42751783. The reversal of 42751775 is 57715724.

It is not a de Polignac number, because 42751775 - 2⁸ = 42751519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77456 + ... + 78005.

It is an arithmetic number, because the mean of its divisors is an integer number (4819322).

Almost surely, 2^42751775 is an apocalyptic number.

42751775 is a deficient number, since it is larger than the sum of its proper divisors (15080089).

42751775 is a wasteful number, since it uses less digits than its factorization.

42751775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155482 (or 155477 counting only the distinct ones).

The product of its digits is 68600, while the sum is 38.

The square root of 42751775 is about 6538.4841515446. The cubic root of 42751775 is about 349.6643721345.

It can be divided in two parts, 427 and 51775, that multiplied together give a triangular number (22107925 = T₆₆₄₉).

The spelling of 42751775 in words is "forty-two million, seven hundred fifty-one thousand, seven hundred seventy-five".