51899598 has 24 divisors (see below), whose sum is σ = 113022000. Its totient is φ = 17211744.

The previous prime is 51899597. The next prime is 51899633. The reversal of 51899598 is 89599815.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51899597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3663 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (4709250).

Almost surely, 2^51899598 is an apocalyptic number.

51899598 is an abundant number, since it is smaller than the sum of its proper divisors (61122402).

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

51899598 is a wasteful number, since it uses less digits than its factorization.

51899598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14696 (or 14693 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 54.

The square root of 51899598 is about 7204.1375611519. The cubic root of 51899598 is about 373.0107355309.

The spelling of 51899598 in words is "fifty-one million, eight hundred ninety-nine thousand, five hundred ninety-eight".