51040335 has 32 divisors (see below), whose sum is σ = 85662720. Its totient is φ = 25901568.

The previous prime is 51040331. The next prime is 51040373. The reversal of 51040335 is 53304015.

It is not a de Polignac number, because 51040335 - 2² = 51040331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51040331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116046 + ... + 116484.

It is an arithmetic number, because the mean of its divisors is an integer number (2676960).

Almost surely, 2^51040335 is an apocalyptic number.

51040335 is a deficient number, since it is larger than the sum of its proper divisors (34622385).

51040335 is a wasteful number, since it uses less digits than its factorization.

51040335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51040335 is about 7144.2518852571. The cubic root of 51040335 is about 370.9407155533.

Adding to 51040335 its sum of digits (21), we get a triangular number (51040356 = T₁₀₁₀₃).

The spelling of 51040335 in words is "fifty-one million, forty thousand, three hundred thirty-five".