51797946 has 32 divisors (see below), whose sum is σ = 110341440. Its totient is φ = 16153856.

The previous prime is 51797939. The next prime is 51797959. The reversal of 51797946 is 64979715.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51797895 and 51797904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16840 + ... + 19676.

It is an arithmetic number, because the mean of its divisors is an integer number (3448170).

Almost surely, 2^51797946 is an apocalyptic number.

51797946 is an abundant number, since it is smaller than the sum of its proper divisors (58543494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51797946 is a wasteful number, since it uses less digits than its factorization.

51797946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038.

The product of its digits is 476280, while the sum is 48.

The square root of 51797946 is about 7197.0789908129. The cubic root of 51797946 is about 372.7670466199.

The spelling of 51797946 in words is "fifty-one million, seven hundred ninety-seven thousand, nine hundred forty-six".