51092405 has 16 divisors (see below), whose sum is σ = 75460224. Its totient is φ = 32339520.

The previous prime is 51092401. The next prime is 51092411. The reversal of 51092405 is 50429015.

It is not a de Polignac number, because 51092405 - 2² = 51092401 is a prime.

It is a super-2 number, since 2×51092405² = 5220867697368050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51092401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55691 + ... + 56600.

It is an arithmetic number, because the mean of its divisors is an integer number (4716264).

Almost surely, 2^51092405 is an apocalyptic number.

It is an amenable number.

51092405 is a deficient number, since it is larger than the sum of its proper divisors (24367819).

51092405 is a wasteful number, since it uses less digits than its factorization.

51092405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112316.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51092405 is about 7147.8951447262. The cubic root of 51092405 is about 371.0668139851.

The spelling of 51092405 in words is "fifty-one million, ninety-two thousand, four hundred five".