51348854 has 4 divisors (see below), whose sum is σ = 77023284. Its totient is φ = 25674426.

The previous prime is 51348853. The next prime is 51348883. The reversal of 51348854 is 45884315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45884315 = 5 ⋅9176863.

It is a super-2 number, since 2×51348854² = 5273409614226632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51348853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12837212 + ... + 12837215.

It is an arithmetic number, because the mean of its divisors is an integer number (19255821).

Almost surely, 2^51348854 is an apocalyptic number.

51348854 is a deficient number, since it is larger than the sum of its proper divisors (25674430).

51348854 is a wasteful number, since it uses less digits than its factorization.

51348854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25674429.

The product of its digits is 76800, while the sum is 38.

The square root of 51348854 is about 7165.8114683544. The cubic root of 51348854 is about 371.6866121957.

The spelling of 51348854 in words is "fifty-one million, three hundred forty-eight thousand, eight hundred fifty-four".