51488402 has 8 divisors (see below), whose sum is σ = 88265856. Its totient is φ = 22066452.

The previous prime is 51488401. The next prime is 51488413. The reversal of 51488402 is 20488415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51488401) 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 3 ways as a sum of consecutive naturals, for example, 1838858 + ... + 1838885.

It is an arithmetic number, because the mean of its divisors is an integer number (11033232).

Almost surely, 2^51488402 is an apocalyptic number.

51488402 is a deficient number, since it is larger than the sum of its proper divisors (36777454).

51488402 is a wasteful number, since it uses less digits than its factorization.

51488402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677752.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 51488402 is about 7175.5419307534. The cubic root of 51488402 is about 372.0230118343.

The spelling of 51488402 in words is "fifty-one million, four hundred eighty-eight thousand, four hundred two".