51524242 has 64 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 19010880.

The previous prime is 51524237. The next prime is 51524243. The reversal of 51524242 is 24242515.

It is not an unprimeable number, because it can be changed into a prime (51524243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370609 + ... + 370747.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^51524242 is an apocalyptic number.

51524242 is a deficient number, since it is larger than the sum of its proper divisors (50082158).

51524242 is a wasteful number, since it uses less digits than its factorization.

51524242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its digits is 3200, while the sum is 25.

The square root of 51524242 is about 7178.0388686604. The cubic root of 51524242 is about 372.1093109602.

Adding to 51524242 its reverse (24242515), we get a palindrome (75766757).

The spelling of 51524242 in words is "fifty-one million, five hundred twenty-four thousand, two hundred forty-two".