51414390 has 48 divisors (see below), whose sum is σ = 138294000. Its totient is φ = 13237056.

The previous prime is 51414383. The next prime is 51414401. The reversal of 51414390 is 9341415.

51414390 is a `hidden beast` number, since 514 + 143 + 9 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 7240 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (2881125).

Almost surely, 2^51414390 is an apocalyptic number.

51414390 is an abundant number, since it is smaller than the sum of its proper divisors (86879610).

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

51414390 is a wasteful number, since it uses less digits than its factorization.

51414390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19741 (or 19738 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51414390 is about 7170.3828349677. The cubic root of 51414390 is about 371.8446715374.

The spelling of 51414390 in words is "fifty-one million, four hundred fourteen thousand, three hundred ninety".