51032201 has 4 divisors (see below), whose sum is σ = 55671504. Its totient is φ = 46392900.

The previous prime is 51032171. The next prime is 51032207. The reversal of 51032201 is 10223015.

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-51032201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51032207) 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, 2319635 + ... + 2319656.

It is an arithmetic number, because the mean of its divisors is an integer number (13917876).

Almost surely, 2^51032201 is an apocalyptic number.

It is an amenable number.

51032201 is a deficient number, since it is larger than the sum of its proper divisors (4639303).

51032201 is a wasteful number, since it uses less digits than its factorization.

51032201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639302.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 51032201 is about 7143.6825937327. The cubic root of 51032201 is about 370.9210096215.

Adding to 51032201 its reverse (10223015), we get a palindrome (61255216).

The spelling of 51032201 in words is "fifty-one million, thirty-two thousand, two hundred one".