42764555 has 4 divisors (see below), whose sum is σ = 51317472. Its totient is φ = 34211640.

The previous prime is 42764551. The next prime is 42764569. The reversal of 42764555 is 55546724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42764555 - 2² = 42764551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42764551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276451 + ... + 4276460.

It is an arithmetic number, because the mean of its divisors is an integer number (12829368).

Almost surely, 2^42764555 is an apocalyptic number.

42764555 is a deficient number, since it is larger than the sum of its proper divisors (8552917).

42764555 is an equidigital number, since it uses as much as digits as its factorization.

42764555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552916.

The product of its digits is 168000, while the sum is 38.

The square root of 42764555 is about 6539.4613692566. The cubic root of 42764555 is about 349.6992109645.

The spelling of 42764555 in words is "forty-two million, seven hundred sixty-four thousand, five hundred fifty-five".