51402201 has 16 divisors (see below), whose sum is σ = 72306240. Its totient is φ = 32391360.

The previous prime is 51402193. The next prime is 51402251. The reversal of 51402201 is 10220415.

It is not a de Polignac number, because 51402201 - 2³ = 51402193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51402251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36531 + ... + 37911.

It is an arithmetic number, because the mean of its divisors is an integer number (4519140).

Almost surely, 2^51402201 is an apocalyptic number.

It is an amenable number.

51402201 is a deficient number, since it is larger than the sum of its proper divisors (20904039).

51402201 is a wasteful number, since it uses less digits than its factorization.

51402201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

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

The square root of 51402201 is about 7169.5328299688. The cubic root of 51402201 is about 371.8152843501.

Adding to 51402201 its reverse (10220415), we get a palindrome (61622616).

The spelling of 51402201 in words is "fifty-one million, four hundred two thousand, two hundred one".