51525454 has 8 divisors (see below), whose sum is σ = 81356040. Its totient is φ = 24406776.

The previous prime is 51525443. The next prime is 51525557. The reversal of 51525454 is 45452515.

51525454 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 super-2 number, since 2×51525454² = 5309744819812232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 677929 + ... + 678004.

It is an arithmetic number, because the mean of its divisors is an integer number (10169505).

Almost surely, 2^51525454 is an apocalyptic number.

51525454 is a deficient number, since it is larger than the sum of its proper divisors (29830586).

51525454 is a wasteful number, since it uses less digits than its factorization.

51525454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355954.

The product of its digits is 20000, while the sum is 31.

The square root of 51525454 is about 7178.1232923376. The cubic root of 51525454 is about 372.1122286350.

Adding to 51525454 its reverse (45452515), we get a palindrome (96977969).

The spelling of 51525454 in words is "fifty-one million, five hundred twenty-five thousand, four hundred fifty-four".