51009135 has 8 divisors (see below), whose sum is σ = 81614640. Its totient is φ = 27204864.

The previous prime is 51009131. The next prime is 51009139. The reversal of 51009135 is 53190015.

It is an interprime number because it is at equal distance from previous prime (51009131) and next prime (51009139).

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

It is not a de Polignac number, because 51009135 - 2² = 51009131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51009131) 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, 1700290 + ... + 1700319.

It is an arithmetic number, because the mean of its divisors is an integer number (10201830).

Almost surely, 2^51009135 is an apocalyptic number.

51009135 is a deficient number, since it is larger than the sum of its proper divisors (30605505).

51009135 is a wasteful number, since it uses less digits than its factorization.

51009135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400617.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 51009135 is about 7142.0679778339. The cubic root of 51009135 is about 370.8651171119.

The spelling of 51009135 in words is "fifty-one million, nine thousand, one hundred thirty-five".