42253777 has 4 divisors (see below), whose sum is σ = 44477680. Its totient is φ = 40029876.

The previous prime is 42253769. The next prime is 42253801. The reversal of 42253777 is 77735224.

42253777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42253777 - 2³ = 42253769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42253727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111923 + ... + 1111960.

It is an arithmetic number, because the mean of its divisors is an integer number (11119420).

Almost surely, 2^42253777 is an apocalyptic number.

It is an amenable number.

42253777 is a deficient number, since it is larger than the sum of its proper divisors (2223903).

42253777 is a wasteful number, since it uses less digits than its factorization.

42253777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223902.

The product of its digits is 82320, while the sum is 37.

The square root of 42253777 is about 6500.2905319686. The cubic root of 42253777 is about 348.3013667441.

The spelling of 42253777 in words is "forty-two million, two hundred fifty-three thousand, seven hundred seventy-seven".