51420201 has 8 divisors (see below), whose sum is σ = 78354624. Its totient is φ = 29382960.

The previous prime is 51420199. The next prime is 51420233. The reversal of 51420201 is 10202415.

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

It is not a de Polignac number, because 51420201 - 2¹ = 51420199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51420301) 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, 1224270 + ... + 1224311.

It is an arithmetic number, because the mean of its divisors is an integer number (9794328).

Almost surely, 2^51420201 is an apocalyptic number.

It is an amenable number.

51420201 is a deficient number, since it is larger than the sum of its proper divisors (26934423).

51420201 is a wasteful number, since it uses less digits than its factorization.

51420201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448591.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 51420201 is about 7170.7880320088. The cubic root of 51420201 is about 371.8586799890.

Adding to 51420201 its reverse (10202415), we get a palindrome (61622616).

The spelling of 51420201 in words is "fifty-one million, four hundred twenty thousand, two hundred one".