51087154 has 8 divisors (see below), whose sum is σ = 79273260. Its totient is φ = 24662736.

The previous prime is 51087133. The next prime is 51087173. The reversal of 51087154 is 45178015.

It can be written as a sum of positive squares in 2 ways, for example, as 50908225 + 178929 = 7135^2 + 423^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440349 + ... + 440464.

Almost surely, 2^51087154 is an apocalyptic number.

51087154 is a deficient number, since it is larger than the sum of its proper divisors (28186106).

51087154 is a wasteful number, since it uses less digits than its factorization.

51087154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880844.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 51087154 is about 7147.5278243600. The cubic root of 51087154 is about 371.0541014720.

The spelling of 51087154 in words is "fifty-one million, eighty-seven thousand, one hundred fifty-four".