42000625 has 40 divisors (see below), whose sum is σ = 57356640. Its totient is φ = 30624000.

The previous prime is 42000611. The next prime is 42000649. The reversal of 42000625 is 52600024.

It is a de Polignac number, because none of the positive numbers 2^k-42000625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 626842 + ... + 626908.

It is an arithmetic number, because the mean of its divisors is an integer number (1433916).

Almost surely, 2^42000625 is an apocalyptic number.

It is an amenable number.

42000625 is a deficient number, since it is larger than the sum of its proper divisors (15356015).

42000625 is an equidigital number, since it uses as much as digits as its factorization.

42000625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42000625 is about 6480.7889180253. The cubic root of 42000625 is about 347.6043886997.

Adding to 42000625 its reverse (52600024), we get a palindrome (94600649).

The spelling of 42000625 in words is "forty-two million, six hundred twenty-five", and thus it is an aban number.