51373001 has 4 divisors (see below), whose sum is σ = 51871872. Its totient is φ = 50874132.

The previous prime is 51372967. The next prime is 51373009. The reversal of 51373001 is 10037315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51373001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51373009) 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, 249281 + ... + 249486.

It is an arithmetic number, because the mean of its divisors is an integer number (12967968).

Almost surely, 2^51373001 is an apocalyptic number.

It is an amenable number.

51373001 is a deficient number, since it is larger than the sum of its proper divisors (498871).

51373001 is a wasteful number, since it uses less digits than its factorization.

51373001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498870.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 51373001 is about 7167.4961457960. The cubic root of 51373001 is about 371.7448654278.

The spelling of 51373001 in words is "fifty-one million, three hundred seventy-three thousand, one".