51550707 has 8 divisors (see below), whose sum is σ = 74021584. Its totient is φ = 31723488.

The previous prime is 51550699. The next prime is 51550711. The reversal of 51550707 is 70705515.

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

It is not a de Polignac number, because 51550707 - 2³ = 51550699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51550717) 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, 660868 + ... + 660945.

It is an arithmetic number, because the mean of its divisors is an integer number (9252698).

Almost surely, 2^51550707 is an apocalyptic number.

51550707 is a deficient number, since it is larger than the sum of its proper divisors (22470877).

51550707 is a wasteful number, since it uses less digits than its factorization.

51550707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321829.

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 51550707 is about 7179.8821020961. The cubic root of 51550707 is about 372.1730103434.

The spelling of 51550707 in words is "fifty-one million, five hundred fifty thousand, seven hundred seven".