51425105 has 8 divisors (see below), whose sum is σ = 62874792. Its totient is φ = 40363648.

The previous prime is 51425093. The next prime is 51425107. The reversal of 51425105 is 50152415.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12475024 + 38950081 = 3532^2 + 6241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51425105 - 2⁶ = 51425041 is a prime.

It is a super-2 number, since 2×51425105² = 5289082848522050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51425107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96764 + ... + 97293.

It is an arithmetic number, because the mean of its divisors is an integer number (7859349).

Almost surely, 2^51425105 is an apocalyptic number.

It is an amenable number.

51425105 is a deficient number, since it is larger than the sum of its proper divisors (11449687).

51425105 is a wasteful number, since it uses less digits than its factorization.

51425105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194115.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 51425105 is about 7171.1299667486. The cubic root of 51425105 is about 371.8705011343.

The spelling of 51425105 in words is "fifty-one million, four hundred twenty-five thousand, one hundred five".