51102425 has 36 divisors (see below), whose sum is σ = 73547376. Its totient is φ = 34924800.

The previous prime is 51102407. The next prime is 51102427. The reversal of 51102425 is 52420115.

51102425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51102425 - 2¹⁶ = 51036889 is a prime.

It is a super-2 number, since 2×51102425² = 5222915681761250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51102397 and 51102406.

It is not an unprimeable number, because it can be changed into a prime (51102427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79154 + ... + 79796.

Almost surely, 2^51102425 is an apocalyptic number.

51102425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51102425 is a deficient number, since it is larger than the sum of its proper divisors (22444951).

51102425 is a wasteful number, since it uses less digits than its factorization.

51102425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51102425 is about 7148.5960160020. The cubic root of 51102425 is about 371.0910696870.

The spelling of 51102425 in words is "fifty-one million, one hundred two thousand, four hundred twenty-five".