51098946 has 8 divisors (see below), whose sum is σ = 102197904. Its totient is φ = 17032980.

The previous prime is 51098911. The next prime is 51098953. The reversal of 51098946 is 64989015.

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

51098946 is an admirable number.

It is a super-2 number, since 2×51098946² = 5222204564621832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51098898 and 51098907.

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, 4258240 + ... + 4258251.

It is an arithmetic number, because the mean of its divisors is an integer number (12774738).

Almost surely, 2^51098946 is an apocalyptic number.

51098946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51098946 is a wasteful number, since it uses less digits than its factorization.

51098946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516496.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 51098946 is about 7148.3526773656. The cubic root of 51098946 is about 371.0826483311.

The spelling of 51098946 in words is "fifty-one million, ninety-eight thousand, nine hundred forty-six".