42551332 has 24 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 20499552.

The previous prime is 42551303. The next prime is 42551351. The reversal of 42551332 is 23315524.

It is a junction number, because it is equal to n+sod(n) for n = 42551297 and 42551306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14493 + ... + 17179.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536).

Almost surely, 2^42551332 is an apocalyptic number.

It is an amenable number.

42551332 is a deficient number, since it is larger than the sum of its proper divisors (34669532).

42551332 is a wasteful number, since it uses less digits than its factorization.

42551332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835 (or 2833 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 42551332 is about 6523.1382018167. The cubic root of 42551332 is about 349.1170451664.

Adding to 42551332 its reverse (23315524), we get a palindrome (65866856).

The spelling of 42551332 in words is "forty-two million, five hundred fifty-one thousand, three hundred thirty-two".