51364973 has 8 divisors (see below), whose sum is σ = 59330880. Its totient is φ = 43948480.

The previous prime is 51364949. The next prime is 51364979. The reversal of 51364973 is 37946315.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51364973 - 2⁶ = 51364909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51364979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137153 + ... + 137526.

It is an arithmetic number, because the mean of its divisors is an integer number (7416360).

Almost surely, 2^51364973 is an apocalyptic number.

It is an amenable number.

51364973 is a deficient number, since it is larger than the sum of its proper divisors (7965907).

51364973 is a wasteful number, since it uses less digits than its factorization.

51364973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274707.

The product of its digits is 68040, while the sum is 38.

The square root of 51364973 is about 7166.9360957106. The cubic root of 51364973 is about 371.7255003710.

The spelling of 51364973 in words is "fifty-one million, three hundred sixty-four thousand, nine hundred seventy-three".