42252500 has 30 divisors (see below), whose sum is σ = 92403234. Its totient is φ = 16900000.

The previous prime is 42252499. The next prime is 42252547. The reversal of 42252500 is 525224.

It can be written as a sum of positive squares in 5 ways, for example, as 3489424 + 38763076 = 1868^2 + 6226^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5951 + ... + 10950.

Almost surely, 2^42252500 is an apocalyptic number.

It is an amenable number.

42252500 is an abundant number, since it is smaller than the sum of its proper divisors (50150734).

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

42252500 is a wasteful number, since it uses less digits than its factorization.

42252500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16925 (or 16908 counting only the distinct ones).

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

The square root of 42252500 is about 6500.1923048476. The cubic root of 42252500 is about 348.2978579034.

Adding to 42252500 its reverse (525224), we get a palindrome (42777724).

It can be divided in two parts, 4225 and 2500, that multiplied together give a square (10562500 = 3250²).

The spelling of 42252500 in words is "forty-two million, two hundred fifty-two thousand, five hundred".