51667074 has 12 divisors (see below), whose sum is σ = 111945366. Its totient is φ = 17222352.

The previous prime is 51667069. The next prime is 51667079. The reversal of 51667074 is 47076615.

51667074 is a `hidden beast` number, since 516 + 6 + 70 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (51667069) and next prime (51667079).

It can be written as a sum of positive squares in only one way, i.e., 51624225 + 42849 = 7185^2 + 207^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51667079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1435179 + ... + 1435214.

Almost surely, 2^51667074 is an apocalyptic number.

51667074 is an abundant number, since it is smaller than the sum of its proper divisors (60278292).

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

51667074 is a wasteful number, since it uses less digits than its factorization.

51667074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870401 (or 2870398 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 51667074 is about 7187.9812186733. The cubic root of 51667074 is about 372.4528390964.

The spelling of 51667074 in words is "fifty-one million, six hundred sixty-seven thousand, seventy-four".