51415101 has 8 divisors (see below), whose sum is σ = 76170560. Its totient is φ = 34276716.

The previous prime is 51415093. The next prime is 51415129. The reversal of 51415101 is 10151415.

It is a happy number.

51415101 is a `hidden beast` number, since 514 + 151 + 0 + 1 = 666.

It is not a de Polignac number, because 51415101 - 2³ = 51415093 is a prime.

It is a super-2 number, since 2×51415101² = 5287025221680402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415201) 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, 952105 + ... + 952158.

It is an arithmetic number, because the mean of its divisors is an integer number (9521320).

Almost surely, 2^51415101 is an apocalyptic number.

It is an amenable number.

51415101 is a deficient number, since it is larger than the sum of its proper divisors (24755459).

51415101 is a wasteful number, since it uses less digits than its factorization.

51415101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904272 (or 1904266 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 51415101 is about 7170.4324137391. The cubic root of 51415101 is about 371.8463855863.

Adding to 51415101 its reverse (10151415), we get a palindrome (61566516).

It can be divided in two parts, 51415 and 101, that multiplied together give a palindrome (5192915).

The spelling of 51415101 in words is "fifty-one million, four hundred fifteen thousand, one hundred one".