51888502 has 4 divisors (see below), whose sum is σ = 77832756. Its totient is φ = 25944250.

The previous prime is 51888481. The next prime is 51888503. The reversal of 51888502 is 20588815.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12972124 + ... + 12972127.

It is an arithmetic number, because the mean of its divisors is an integer number (19458189).

Almost surely, 2^51888502 is an apocalyptic number.

51888502 is a deficient number, since it is larger than the sum of its proper divisors (25944254).

51888502 is a wasteful number, since it uses less digits than its factorization.

51888502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25944253.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 51888502 is about 7203.3674069840. The cubic root of 51888502 is about 372.9841507256.

The spelling of 51888502 in words is "fifty-one million, eight hundred eighty-eight thousand, five hundred two".