51429854 has 16 divisors (see below), whose sum is σ = 88394976. Its totient is φ = 21984000.

The previous prime is 51429839. The next prime is 51429877. The reversal of 51429854 is 45892415.

It is a super-2 number, since 2×51429854² = 5290059764922632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 10194.

It is an arithmetic number, because the mean of its divisors is an integer number (5524686).

Almost surely, 2^51429854 is an apocalyptic number.

51429854 is a deficient number, since it is larger than the sum of its proper divisors (36965122).

51429854 is a wasteful number, since it uses less digits than its factorization.

51429854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571.

The product of its digits is 57600, while the sum is 38.

The square root of 51429854 is about 7171.4610784693. The cubic root of 51429854 is about 371.8819479341.

The spelling of 51429854 in words is "fifty-one million, four hundred twenty-nine thousand, eight hundred fifty-four".