51430654 has 16 divisors (see below), whose sum is σ = 85587840. Its totient is φ = 22980760.

The previous prime is 51430637. The next prime is 51430657. The reversal of 51430654 is 45603415.

51430654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51430654² = 5290224341735432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51430657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18514 + ... + 21109.

It is an arithmetic number, because the mean of its divisors is an integer number (5349240).

Almost surely, 2^51430654 is an apocalyptic number.

51430654 is a deficient number, since it is larger than the sum of its proper divisors (34157186).

51430654 is a wasteful number, since it uses less digits than its factorization.

51430654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39695.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51430654 is about 7171.5168548920. The cubic root of 51430654 is about 371.8838761528.

The spelling of 51430654 in words is "fifty-one million, four hundred thirty thousand, six hundred fifty-four".