51070788 has 36 divisors (see below), whose sum is σ = 136691100. Its totient is φ = 16022016.

The previous prime is 51070777. The next prime is 51070807. The reversal of 51070788 is 88707015.

51070788 is a `hidden beast` number, since 510 + 70 + 78 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21455424 + 29615364 = 4632^2 + 5442^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×51070788⁴ (a number of 32 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 41113 + ... + 42336.

It is an arithmetic number, because the mean of its divisors is an integer number (3796975).

Almost surely, 2^51070788 is an apocalyptic number.

It is an amenable number.

51070788 is an abundant number, since it is smaller than the sum of its proper divisors (85620312).

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

51070788 is a wasteful number, since it uses less digits than its factorization.

51070788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83476 (or 83471 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 51070788 is about 7146.3828612802. The cubic root of 51070788 is about 371.0144742890.

The spelling of 51070788 in words is "fifty-one million, seventy thousand, seven hundred eighty-eight".