42052621 has 8 divisors (see below), whose sum is σ = 45645824. Its totient is φ = 38510640.

The previous prime is 42052613. The next prime is 42052627. The reversal of 42052621 is 12625024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42052621 - 2³ = 42052613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42052592 and 42052601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052627) 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, 11085 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (5705728).

Almost surely, 2^42052621 is an apocalyptic number.

It is an amenable number.

42052621 is a deficient number, since it is larger than the sum of its proper divisors (3593203).

42052621 is a wasteful number, since it uses less digits than its factorization.

42052621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25611.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42052621 is about 6484.7992258820. The cubic root of 42052621 is about 347.7477721571.

Adding to 42052621 its reverse (12625024), we get a palindrome (54677645).

The spelling of 42052621 in words is "forty-two million, fifty-two thousand, six hundred twenty-one".