51032398 has 16 divisors (see below), whose sum is σ = 78807744. Its totient is φ = 24766560.

The previous prime is 51032393. The next prime is 51032441. The reversal of 51032398 is 89323015.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51032393) 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, 55563 + ... + 56473.

It is an arithmetic number, because the mean of its divisors is an integer number (4925484).

Almost surely, 2^51032398 is an apocalyptic number.

51032398 is a deficient number, since it is larger than the sum of its proper divisors (27775346).

51032398 is a wasteful number, since it uses less digits than its factorization.

51032398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 51032398 is about 7143.6963821260. The cubic root of 51032398 is about 370.9214869107.

The spelling of 51032398 in words is "fifty-one million, thirty-two thousand, three hundred ninety-eight".