51642352 has 20 divisors (see below), whose sum is σ = 101946600. Its totient is φ = 25333568.

The previous prime is 51642341. The next prime is 51642401. The reversal of 51642352 is 25324615.

It is a self number, because there is not a number n which added to its sum of digits gives 51642352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29602 + ... + 31297.

It is an arithmetic number, because the mean of its divisors is an integer number (5097330).

Almost surely, 2^51642352 is an apocalyptic number.

It is an amenable number.

51642352 is a deficient number, since it is larger than the sum of its proper divisors (50304248).

51642352 is a wasteful number, since it uses less digits than its factorization.

51642352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60960 (or 60954 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 51642352 is about 7186.2613367453. The cubic root of 51642352 is about 372.3934250611.

Adding to 51642352 its reverse (25324615), we get a palindrome (76966967).

The spelling of 51642352 in words is "fifty-one million, six hundred forty-two thousand, three hundred fifty-two".