51098416 has 40 divisors (see below), whose sum is σ = 103707648. Its totient is φ = 24360000.

The previous prime is 51098407. The next prime is 51098417. The reversal of 51098416 is 61489015.

It is a super-2 number, since 2×51098416² = 5222096235418112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51098417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34491 + ... + 35941.

Almost surely, 2^51098416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51098416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51853824).

51098416 is an abundant number, since it is smaller than the sum of its proper divisors (52609232).

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

51098416 is a wasteful number, since it uses less digits than its factorization.

51098416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 51098416 is about 7148.3156057913. The cubic root of 51098416 is about 371.0813653660.

The spelling of 51098416 in words is "fifty-one million, ninety-eight thousand, four hundred sixteen".