51663007 has 12 divisors (see below), whose sum is σ = 58748760. Its totient is φ = 45343760.

The previous prime is 51662977. The next prime is 51663023. The reversal of 51663007 is 70036615.

It is a de Polignac number, because none of the positive numbers 2^k-51663007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51663047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3853 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (4895730).

Almost surely, 2^51663007 is an apocalyptic number.

51663007 is a deficient number, since it is larger than the sum of its proper divisors (7085753).

51663007 is a wasteful number, since it uses less digits than its factorization.

51663007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14774 (or 14763 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 51663007 is about 7187.6983103077. The cubic root of 51663007 is about 372.4430662351.

The spelling of 51663007 in words is "fifty-one million, six hundred sixty-three thousand, seven".