51625442 has 8 divisors (see below), whose sum is σ = 84478032. Its totient is φ = 23466100.

The previous prime is 51625439. The next prime is 51625463. The reversal of 51625442 is 24452615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173284 + ... + 1173327.

It is an arithmetic number, because the mean of its divisors is an integer number (10559754).

Almost surely, 2^51625442 is an apocalyptic number.

51625442 is a deficient number, since it is larger than the sum of its proper divisors (32852590).

51625442 is a wasteful number, since it uses less digits than its factorization.

51625442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346624.

The product of its digits is 9600, while the sum is 29.

The square root of 51625442 is about 7185.0846898279. The cubic root of 51625442 is about 372.3527745742.

The spelling of 51625442 in words is "fifty-one million, six hundred twenty-five thousand, four hundred forty-two".