51407495 has 4 divisors (see below), whose sum is σ = 61689000. Its totient is φ = 41125992.

The previous prime is 51407449. The next prime is 51407501. The reversal of 51407495 is 59470415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59470415 = 5 ⋅11894083.

It is a cyclic number.

It is not a de Polignac number, because 51407495 - 2⁶ = 51407431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5140745 + ... + 5140754.

It is an arithmetic number, because the mean of its divisors is an integer number (15422250).

Almost surely, 2^51407495 is an apocalyptic number.

51407495 is a deficient number, since it is larger than the sum of its proper divisors (10281505).

51407495 is a wasteful number, since it uses less digits than its factorization.

51407495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281504.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 51407495 is about 7169.9020216458. The cubic root of 51407495 is about 371.8280485412.

The spelling of 51407495 in words is "fifty-one million, four hundred seven thousand, four hundred ninety-five".