51025501 has 8 divisors (see below), whose sum is σ = 52012800. Its totient is φ = 50042400.

The previous prime is 51025493. The next prime is 51025511. The reversal of 51025501 is 10552015.

51025501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51025501 - 2³ = 51025493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025511) 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 7 ways as a sum of consecutive naturals, for example, 34740 + ... + 36178.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2^51025501 is an apocalyptic number.

It is an amenable number.

51025501 is a deficient number, since it is larger than the sum of its proper divisors (987299).

51025501 is a wasteful number, since it uses less digits than its factorization.

51025501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 51025501 is about 7143.2136325326. The cubic root of 51025501 is about 370.9047762141.

Adding to 51025501 its reverse (10552015), we get a palindrome (61577516).

The spelling of 51025501 in words is "fifty-one million, twenty-five thousand, five hundred one".