51025420204 has 24 divisors (see below), whose sum is σ = 99788075856. Its totient is φ = 22627680000.

The previous prime is 51025420157. The next prime is 51025420223. The reversal of 51025420204 is 40202452015.

It is a super-3 number, since 3×51025420204³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14140497 + ... + 14144104.

It is an arithmetic number, because the mean of its divisors is an integer number (4157836494).

Almost surely, 2^51025420204 is an apocalyptic number.

It is an amenable number.

51025420204 is a deficient number, since it is larger than the sum of its proper divisors (48762655652).

51025420204 is a wasteful number, since it uses less digits than its factorization.

51025420204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28284657 (or 28284655 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 51025420204 its reverse (40202452015), we get a palindrome (91227872219).

The spelling of 51025420204 in words is "fifty-one billion, twenty-five million, four hundred twenty thousand, two hundred four".