42525400 has 24 divisors (see below), whose sum is σ = 98872020. Its totient is φ = 17010080.

The previous prime is 42525389. The next prime is 42525419. The reversal of 42525400 is 452524.

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 5 ways as a sum of consecutive naturals, for example, 106114 + ... + 106513.

Almost surely, 2^42525400 is an apocalyptic number.

42525400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42525400 is an abundant number, since it is smaller than the sum of its proper divisors (56346620).

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

42525400 is a wasteful number, since it uses less digits than its factorization.

42525400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212643 (or 212634 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42525400 is about 6521.1502052935. The cubic root of 42525400 is about 349.0461101136.

Adding to 42525400 its reverse (452524), we get a palindrome (42977924).

The spelling of 42525400 in words is "forty-two million, five hundred twenty-five thousand, four hundred".