51360646 has 8 divisors (see below), whose sum is σ = 77629464. Its totient is φ = 25484160.

The previous prime is 51360643. The next prime is 51360677. The reversal of 51360646 is 64606315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51360643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97755 + ... + 98278.

It is an arithmetic number, because the mean of its divisors is an integer number (9703683).

Almost surely, 2^51360646 is an apocalyptic number.

51360646 is a deficient number, since it is larger than the sum of its proper divisors (26268818).

51360646 is a wasteful number, since it uses less digits than its factorization.

51360646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196166.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 51360646 is about 7166.6342169808. The cubic root of 51360646 is about 371.7150619905.

The spelling of 51360646 in words is "fifty-one million, three hundred sixty thousand, six hundred forty-six".