51534454 has 4 divisors (see below), whose sum is σ = 77301684. Its totient is φ = 25767226.

The previous prime is 51534449. The next prime is 51534473. The reversal of 51534454 is 45443515.

It is a happy number.

51534454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 12883612 + ... + 12883615.

It is an arithmetic number, because the mean of its divisors is an integer number (19325421).

Almost surely, 2^51534454 is an apocalyptic number.

51534454 is a deficient number, since it is larger than the sum of its proper divisors (25767230).

51534454 is a wasteful number, since it uses less digits than its factorization.

51534454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25767229.

The product of its digits is 24000, while the sum is 31.

The square root of 51534454 is about 7178.7501697719. The cubic root of 51534454 is about 372.1338931058.

Adding to 51534454 its reverse (45443515), we get a palindrome (96977969).

It can be divided in two parts, 515 and 34454, that added together give a square (34969 = 187²).

The spelling of 51534454 in words is "fifty-one million, five hundred thirty-four thousand, four hundred fifty-four".