51020470 has 16 divisors (see below), whose sum is σ = 91936368. Its totient is φ = 20386080.

The previous prime is 51020443. The next prime is 51020471. The reversal of 51020470 is 7402015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51020471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9532 + ... + 13888.

It is an arithmetic number, because the mean of its divisors is an integer number (5746023).

Almost surely, 2^51020470 is an apocalyptic number.

51020470 is a deficient number, since it is larger than the sum of its proper divisors (40915898).

51020470 is a wasteful number, since it uses less digits than its factorization.

51020470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 51020470 is about 7142.8614714273. The cubic root of 51020470 is about 370.8925856870.

Adding to 51020470 its reverse (7402015), we get a palindrome (58422485).

The spelling of 51020470 in words is "fifty-one million, twenty thousand, four hundred seventy".