51436701 has 10 divisors (see below), whose sum is σ = 76837662. Its totient is φ = 34291080.

The previous prime is 51436687. The next prime is 51436709. The reversal of 51436701 is 10763415.

51436701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 17214201 = 5850^2 + 4149^2 .

It is not a de Polignac number, because 51436701 - 2¹⁰ = 51435677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51436709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 317430 + ... + 317591.

Almost surely, 2^51436701 is an apocalyptic number.

It is an amenable number.

51436701 is a deficient number, since it is larger than the sum of its proper divisors (25400961).

51436701 is an equidigital number, since it uses as much as digits as its factorization.

51436701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635033 (or 635024 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51436701 is about 7171.9384408959. The cubic root of 51436701 is about 371.8984504290.

The spelling of 51436701 in words is "fifty-one million, four hundred thirty-six thousand, seven hundred one".