51233967 has 24 divisors (see below), whose sum is σ = 75422880. Its totient is φ = 33508800.

The previous prime is 51233957. The next prime is 51233977. The reversal of 51233967 is 76933215.

It is an interprime number because it is at equal distance from previous prime (51233957) and next prime (51233977).

It is not a de Polignac number, because 51233967 - 2⁸ = 51233711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51233957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142534 + ... + 142892.

It is an arithmetic number, because the mean of its divisors is an integer number (3142620).

Almost surely, 2^51233967 is an apocalyptic number.

51233967 is a deficient number, since it is larger than the sum of its proper divisors (24188913).

51233967 is a wasteful number, since it uses less digits than its factorization.

51233967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 620 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 51233967 is about 7157.7906507525. The cubic root of 51233967 is about 371.4092035618.

The spelling of 51233967 in words is "fifty-one million, two hundred thirty-three thousand, nine hundred sixty-seven".