51476747 has 4 divisors (see below), whose sum is σ = 58830576. Its totient is φ = 44122920.

The previous prime is 51476729. The next prime is 51476749. The reversal of 51476747 is 74767415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74767415 = 5 ⋅14953483.

It is a cyclic number.

It is not a de Polignac number, because 51476747 - 2¹⁶ = 51411211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51476749) 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, 3676904 + ... + 3676917.

It is an arithmetic number, because the mean of its divisors is an integer number (14707644).

Almost surely, 2^51476747 is an apocalyptic number.

51476747 is a deficient number, since it is larger than the sum of its proper divisors (7353829).

51476747 is an equidigital number, since it uses as much as digits as its factorization.

51476747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353828.

The product of its digits is 164640, while the sum is 41.

The square root of 51476747 is about 7174.7297510080. The cubic root of 51476747 is about 371.9949391341.

The spelling of 51476747 in words is "fifty-one million, four hundred seventy-six thousand, seven hundred forty-seven".