51438002 has 32 divisors (see below), whose sum is σ = 96712704. Its totient is φ = 19933200.

The previous prime is 51438001. The next prime is 51438007. The reversal of 51438002 is 20083415.

It is not an unprimeable number, because it can be changed into a prime (51438001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31703 + ... + 33285.

It is an arithmetic number, because the mean of its divisors is an integer number (3022272).

Almost surely, 2^51438002 is an apocalyptic number.

51438002 is a deficient number, since it is larger than the sum of its proper divisors (45274702).

51438002 is a wasteful number, since it uses less digits than its factorization.

51438002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 51438002 is about 7172.0291410451. The cubic root of 51438002 is about 371.9015859062.

The spelling of 51438002 in words is "fifty-one million, four hundred thirty-eight thousand, two".