51103211025 has 12 divisors (see below), whose sum is σ = 84490642352. Its totient is φ = 27255045840.

The previous prime is 51103210979. The next prime is 51103211057. The reversal of 51103211025 is 52011230115.

It is not a de Polignac number, because 51103211025 - 2¹² = 51103206929 is a prime.

It is a super-2 number, since 2×51103211025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51103210992 and 51103211010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340687999 + ... + 340688148.

Almost surely, 2^51103211025 is an apocalyptic number.

It is an amenable number.

51103211025 is a deficient number, since it is larger than the sum of its proper divisors (33387431327).

51103211025 is a wasteful number, since it uses less digits than its factorization.

51103211025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681376160 (or 681376155 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 51103211025 in words is "fifty-one billion, one hundred three million, two hundred eleven thousand, twenty-five".