51150006 has 48 divisors (see below), whose sum is σ = 114476544. Its totient is φ = 16497072.

The previous prime is 51149993. The next prime is 51150013. The reversal of 51150006 is 60005115.

It is a super-2 number, since 2×51150006² = 5232646227600072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86845 + ... + 87431.

It is an arithmetic number, because the mean of its divisors is an integer number (2384928).

Almost surely, 2^51150006 is an apocalyptic number.

51150006 is an abundant number, since it is smaller than the sum of its proper divisors (63326538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51150006 is a wasteful number, since it uses less digits than its factorization.

51150006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 51150006 is about 7151.9232378431. The cubic root of 51150006 is about 371.2062071256.

The spelling of 51150006 in words is "fifty-one million, one hundred fifty thousand, six".