51926287 has 16 divisors (see below), whose sum is σ = 60535552. Its totient is φ = 43623360.

The previous prime is 51926261. The next prime is 51926291. The reversal of 51926287 is 78262915.

It is a cyclic number.

It is not a de Polignac number, because 51926287 - 2⁷ = 51926159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51926887) 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, 156712 + ... + 157042.

It is an arithmetic number, because the mean of its divisors is an integer number (3783472).

Almost surely, 2^51926287 is an apocalyptic number.

51926287 is a deficient number, since it is larger than the sum of its proper divisors (8609265).

51926287 is a wasteful number, since it uses less digits than its factorization.

51926287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 60480, while the sum is 40.

The square root of 51926287 is about 7205.9896613859. The cubic root of 51926287 is about 373.0746639485.

The spelling of 51926287 in words is "fifty-one million, nine hundred twenty-six thousand, two hundred eighty-seven".