51258072 has 16 divisors (see below), whose sum is σ = 128145240. Its totient is φ = 17086016.

The previous prime is 51258047. The next prime is 51258101. The reversal of 51258072 is 27085215.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067853 + ... + 1067900.

Almost surely, 2^51258072 is an apocalyptic number.

It is an amenable number.

51258072 is an abundant number, since it is smaller than the sum of its proper divisors (76887168).

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

51258072 is a wasteful number, since it uses less digits than its factorization.

51258072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135762 (or 2135758 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 51258072 is about 7159.4742823758. The cubic root of 51258072 is about 371.4674423675.

The spelling of 51258072 in words is "fifty-one million, two hundred fifty-eight thousand, seventy-two".