51106425 has 12 divisors (see below), whose sum is σ = 84496080. Its totient is φ = 27256720.

The previous prime is 51106417. The next prime is 51106427. The reversal of 51106425 is 52460115.

It is not a de Polignac number, because 51106425 - 2³ = 51106417 is a prime.

It is a super-2 number, since 2×51106425² = 5223733352561250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51106395 and 51106404.

It is not an unprimeable number, because it can be changed into a prime (51106427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340635 + ... + 340784.

It is an arithmetic number, because the mean of its divisors is an integer number (7041340).

Almost surely, 2^51106425 is an apocalyptic number.

It is an amenable number.

51106425 is a deficient number, since it is larger than the sum of its proper divisors (33389655).

51106425 is a wasteful number, since it uses less digits than its factorization.

51106425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681432 (or 681427 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51106425 is about 7148.8757857442. The cubic root of 51106425 is about 371.1007517165.

The spelling of 51106425 in words is "fifty-one million, one hundred six thousand, four hundred twenty-five".