51406154 has 8 divisors (see below), whose sum is σ = 79768260. Its totient is φ = 24816736.

The previous prime is 51406151. The next prime is 51406177. The reversal of 51406154 is 45160415.

It can be written as a sum of positive squares in 2 ways, for example, as 47927929 + 3478225 = 6923^2 + 1865^2 .

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 (51406151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443099 + ... + 443214.

Almost surely, 2^51406154 is an apocalyptic number.

51406154 is a deficient number, since it is larger than the sum of its proper divisors (28362106).

51406154 is a wasteful number, since it uses less digits than its factorization.

51406154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886344.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51406154 is about 7169.8085051136. The cubic root of 51406154 is about 371.8248153826.

Adding to 51406154 its reverse (45160415), we get a palindrome (96566569).

The spelling of 51406154 in words is "fifty-one million, four hundred six thousand, one hundred fifty-four".