51007401 has 32 divisors (see below), whose sum is σ = 77696640. Its totient is φ = 33475680.

The previous prime is 51007379. The next prime is 51007477. The reversal of 51007401 is 10470015.

Added to its reverse (10470015) it gives a triangular number (61477416 = T₁₁₀₈₈).

51007401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51007401 - 2⁶ = 51007337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51007501) 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 31 ways as a sum of consecutive naturals, for example, 181381 + ... + 181661.

It is an arithmetic number, because the mean of its divisors is an integer number (2428020).

Almost surely, 2^51007401 is an apocalyptic number.

It is an amenable number.

51007401 is a deficient number, since it is larger than the sum of its proper divisors (26689239).

51007401 is an frugal number, since it uses more digits than its factorization.

51007401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 51007401 is about 7141.9465833903. The cubic root of 51007401 is about 370.8609146790.

Adding to 51007401 its reverse (10470015), we get a palindrome (61477416).

The spelling of 51007401 in words is "fifty-one million, seven thousand, four hundred one".