42052025 has 6 divisors (see below), whose sum is σ = 52144542. Its totient is φ = 33641600.

The previous prime is 42052007. The next prime is 42052039. The reversal of 42052025 is 52025024.

It can be written as a sum of positive squares in 3 ways, for example, as 9024016 + 33028009 = 3004^2 + 5747^2 .

It is not a de Polignac number, because 42052025 - 2¹⁴ = 42035641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42051988 and 42052006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 841016 + ... + 841065.

It is an arithmetic number, because the mean of its divisors is an integer number (8690757).

Almost surely, 2^42052025 is an apocalyptic number.

It is an amenable number.

42052025 is a deficient number, since it is larger than the sum of its proper divisors (10092517).

42052025 is a wasteful number, since it uses less digits than its factorization.

42052025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682091 (or 1682086 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 42052025 is about 6484.7532720991. The cubic root of 42052025 is about 347.7461293054.

Adding to 42052025 its reverse (52025024), we get a palindrome (94077049).

The spelling of 42052025 in words is "forty-two million, fifty-two thousand, twenty-five".