51894699 has 8 divisors (see below), whose sum is σ = 69230592. Its totient is φ = 34577640.

The previous prime is 51894631. The next prime is 51894707. The reversal of 51894699 is 99649815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51894699 - 2⁸ = 51894443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51894499) 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, 4054 + ... + 10964.

It is an arithmetic number, because the mean of its divisors is an integer number (8653824).

Almost surely, 2^51894699 is an apocalyptic number.

51894699 is a deficient number, since it is larger than the sum of its proper divisors (17335893).

51894699 is a wasteful number, since it uses less digits than its factorization.

51894699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9417.

The product of its digits is 699840, while the sum is 51.

The square root of 51894699 is about 7203.7975401867. The cubic root of 51894699 is about 372.9989985287.

The spelling of 51894699 in words is "fifty-one million, eight hundred ninety-four thousand, six hundred ninety-nine".