51468390 has 24 divisors (see below), whose sum is σ = 133818048. Its totient is φ = 13724880.

The previous prime is 51468349. The next prime is 51468409. The reversal of 51468390 is 9386415.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 285846 + ... + 286025.

It is an arithmetic number, because the mean of its divisors is an integer number (5575752).

Almost surely, 2^51468390 is an apocalyptic number.

51468390 is an abundant number, since it is smaller than the sum of its proper divisors (82349658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51468390 is a wasteful number, since it uses less digits than its factorization.

51468390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571884 (or 571881 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 51468390 is about 7174.1473360951. The cubic root of 51468390 is about 371.9748075205.

The spelling of 51468390 in words is "fifty-one million, four hundred sixty-eight thousand, three hundred ninety".