42655051 has 4 divisors (see below), whose sum is σ = 42701512. Its totient is φ = 42608592.

The previous prime is 42655049. The next prime is 42655073. The reversal of 42655051 is 15055624.

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

It is a cyclic number.

It is not a de Polignac number, because 42655051 - 2¹ = 42655049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42655021) 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, 21825 + ... + 23698.

It is an arithmetic number, because the mean of its divisors is an integer number (10675378).

Almost surely, 2^42655051 is an apocalyptic number.

42655051 is a deficient number, since it is larger than the sum of its proper divisors (46461).

42655051 is an equidigital number, since it uses as much as digits as its factorization.

42655051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46460.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 42655051 is about 6531.0834476372. The cubic root of 42655051 is about 349.4004729556.

It can be divided in two parts, 4265 and 5051, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 42655051 in words is "forty-two million, six hundred fifty-five thousand, fifty-one".