51629101 has 4 divisors (see below), whose sum is σ = 51654400. Its totient is φ = 51603804.

The previous prime is 51629093. The next prime is 51629113. The reversal of 51629101 is 10192615.

51629101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10192615 = 5 ⋅2038523.

It is a cyclic number.

It is not a de Polignac number, because 51629101 - 2³ = 51629093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51624101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9291 + ... + 13768.

It is an arithmetic number, because the mean of its divisors is an integer number (12913600).

Almost surely, 2^51629101 is an apocalyptic number.

It is an amenable number.

51629101 is a deficient number, since it is larger than the sum of its proper divisors (25299).

51629101 is a wasteful number, since it uses less digits than its factorization.

51629101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25298.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 51629101 is about 7185.3393100117. The cubic root of 51629101 is about 372.3615713131.

The spelling of 51629101 in words is "fifty-one million, six hundred twenty-nine thousand, one hundred one".