51633998 has 16 divisors (see below), whose sum is σ = 88315920. Its totient is φ = 22429056.

The previous prime is 51633991. The next prime is 51634061. The reversal of 51633998 is 89933615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51633991) 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, 57968 + ... + 58851.

It is an arithmetic number, because the mean of its divisors is an integer number (5519745).

Almost surely, 2^51633998 is an apocalyptic number.

51633998 is a deficient number, since it is larger than the sum of its proper divisors (36681922).

51633998 is a wasteful number, since it uses less digits than its factorization.

51633998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116851.

The product of its digits is 174960, while the sum is 44.

The square root of 51633998 is about 7185.6800652409. The cubic root of 51633998 is about 372.3733437240.

The spelling of 51633998 in words is "fifty-one million, six hundred thirty-three thousand, nine hundred ninety-eight".