51502054 has 4 divisors (see below), whose sum is σ = 77253084. Its totient is φ = 25751026.

The previous prime is 51502049. The next prime is 51502063. The reversal of 51502054 is 45020515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45020515 = 5 ⋅9004103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12875512 + ... + 12875515.

It is an arithmetic number, because the mean of its divisors is an integer number (19313271).

Almost surely, 2^51502054 is an apocalyptic number.

51502054 is a deficient number, since it is larger than the sum of its proper divisors (25751030).

51502054 is a wasteful number, since it uses less digits than its factorization.

51502054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751029.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 51502054 is about 7176.4931547379. The cubic root of 51502054 is about 372.0558892017.

Adding to 51502054 its reverse (45020515), we get a palindrome (96522569).

The spelling of 51502054 in words is "fifty-one million, five hundred two thousand, fifty-four".