51098960 has 40 divisors (see below), whose sum is σ = 129607776. Its totient is φ = 18581120.

The previous prime is 51098959. The next prime is 51098963. The reversal of 51098960 is 6989015.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×51098960² = 5222207426163200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51098963) 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, 28154 + ... + 29913.

Almost surely, 2^51098960 is an apocalyptic number.

It is an amenable number.

51098960 is an abundant number, since it is smaller than the sum of its proper divisors (78508816).

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

51098960 is a wasteful number, since it uses less digits than its factorization.

51098960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58091 (or 58085 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 51098960 is about 7148.3536566121. The cubic root of 51098960 is about 371.0826822206.

The spelling of 51098960 in words is "fifty-one million, ninety-eight thousand, nine hundred sixty".