51894707 has 2 divisors, whose sum is σ = 51894708. Its totient is φ = 51894706.

The previous prime is 51894631. The next prime is 51894737. The reversal of 51894707 is 70749815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51894707 - 2¹⁰ = 51893683 is a prime.

It is a super-2 number, since 2×51894707² = 5386121229231698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51894737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25947353 + 25947354.

It is an arithmetic number, because the mean of its divisors is an integer number (25947354).

Almost surely, 2^51894707 is an apocalyptic number.

51894707 is a deficient number, since it is larger than the sum of its proper divisors (1).

51894707 is an equidigital number, since it uses as much as digits as its factorization.

51894707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 51894707 is about 7203.7980954494. The cubic root of 51894707 is about 372.9990176956. Note that the first 3 decimals are identical.

The spelling of 51894707 in words is "fifty-one million, eight hundred ninety-four thousand, seven hundred seven".