42501250 has 60 divisors (see below), whose sum is σ = 87876558. Its totient is φ = 15400000.

The previous prime is 42501209. The next prime is 42501253. The reversal of 42501250 is 5210524.

It can be written as a sum of positive squares in 5 ways, for example, as 1656369 + 40844881 = 1287^2 + 6391^2 .

It is not an unprimeable number, because it can be changed into a prime (42501253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 151110 + ... + 151390.

Almost surely, 2^42501250 is an apocalyptic number.

42501250 is an abundant number, since it is smaller than the sum of its proper divisors (45375308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42501250 is a wasteful number, since it uses less digits than its factorization.

42501250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 42501250 is about 6519.2982751213. The cubic root of 42501250 is about 348.9800236511.

Adding to 42501250 its reverse (5210524), we get a palindrome (47711774).

The spelling of 42501250 in words is "forty-two million, five hundred one thousand, two hundred fifty".