51400352 has 12 divisors (see below), whose sum is σ = 101194506. Its totient is φ = 25700160.

The previous prime is 51400343. The next prime is 51400357. The reversal of 51400352 is 25300415.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 9461776 = 6476^2 + 3076^2 .

It is not an unprimeable number, because it can be changed into a prime (51400357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803099 + ... + 803162.

Almost surely, 2^51400352 is an apocalyptic number.

It is an amenable number.

51400352 is a deficient number, since it is larger than the sum of its proper divisors (49794154).

51400352 is a wasteful number, since it uses less digits than its factorization.

51400352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606271 (or 1606263 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51400352 is about 7169.4038803795. The cubic root of 51400352 is about 371.8108260799.

Adding to 51400352 its reverse (25300415), we get a palindrome (76700767).

The spelling of 51400352 in words is "fifty-one million, four hundred thousand, three hundred fifty-two".