42325451 has 16 divisors (see below), whose sum is σ = 50838528. Its totient is φ = 34452000.

The previous prime is 42325421. The next prime is 42325453. The reversal of 42325451 is 15452324.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42325451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42325451.

It is not an unprimeable number, because it can be changed into a prime (42325453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23441 + ... + 25181.

It is an arithmetic number, because the mean of its divisors is an integer number (3177408).

Almost surely, 2^42325451 is an apocalyptic number.

42325451 is a deficient number, since it is larger than the sum of its proper divisors (8513077).

42325451 is a wasteful number, since it uses less digits than its factorization.

42325451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its digits is 4800, while the sum is 26.

The square root of 42325451 is about 6505.8013341940. The cubic root of 42325451 is about 348.4981937252.

Adding to 42325451 its reverse (15452324), we get a palindrome (57777775).

The spelling of 42325451 in words is "forty-two million, three hundred twenty-five thousand, four hundred fifty-one".