51248667 has 8 divisors (see below), whose sum is σ = 68751424. Its totient is φ = 33955848.

The previous prime is 51248657. The next prime is 51248677. The reversal of 51248667 is 76684215.

It is an interprime number because it is at equal distance from previous prime (51248657) and next prime (51248677).

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

It is not a de Polignac number, because 51248667 - 2¹⁰ = 51247643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51248657) 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, 51913 + ... + 52890.

It is an arithmetic number, because the mean of its divisors is an integer number (8593928).

Almost surely, 2^51248667 is an apocalyptic number.

51248667 is a deficient number, since it is larger than the sum of its proper divisors (17502757).

51248667 is a wasteful number, since it uses less digits than its factorization.

51248667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104969.

The product of its digits is 80640, while the sum is 39.

The square root of 51248667 is about 7158.8174302744. The cubic root of 51248667 is about 371.4447216209. Note that the first 3 decimals are identical.

It can be divided in two parts, 51248 and 667, that added together give a palindrome (51915).

The spelling of 51248667 in words is "fifty-one million, two hundred forty-eight thousand, six hundred sixty-seven".