51520196 has 24 divisors (see below), whose sum is σ = 110967360. Its totient is φ = 20381472.

The previous prime is 51520193. The next prime is 51520199. The reversal of 51520196 is 69102515.

It is an interprime number because it is at equal distance from previous prime (51520193) and next prime (51520199).

It is not an unprimeable number, because it can be changed into a prime (51520193) 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, 70406 + ... + 71133.

It is an arithmetic number, because the mean of its divisors is an integer number (4623640).

Almost surely, 2^51520196 is an apocalyptic number.

It is an amenable number.

51520196 is an abundant number, since it is smaller than the sum of its proper divisors (59447164).

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

51520196 is a wasteful number, since it uses less digits than its factorization.

51520196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141563 (or 141561 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 51520196 is about 7177.7570312738. The cubic root of 51520196 is about 372.0995706022.

The spelling of 51520196 in words is "fifty-one million, five hundred twenty thousand, one hundred ninety-six".