42771554 has 16 divisors (see below), whose sum is σ = 73579968. Its totient is φ = 18266352.

The previous prime is 42771529. The next prime is 42771557. The reversal of 42771554 is 45517724.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42771557) 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, 1112 + ... + 9315.

It is an arithmetic number, because the mean of its divisors is an integer number (4598748).

Almost surely, 2^42771554 is an apocalyptic number.

42771554 is a deficient number, since it is larger than the sum of its proper divisors (30808414).

42771554 is a wasteful number, since it uses less digits than its factorization.

42771554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10729.

The product of its digits is 39200, while the sum is 35.

The square root of 42771554 is about 6539.9964831795. The cubic root of 42771554 is about 349.7182875983.

The spelling of 42771554 in words is "forty-two million, seven hundred seventy-one thousand, five hundred fifty-four".