51151767 has 16 divisors (see below), whose sum is σ = 70597632. Its totient is φ = 32909760.

The previous prime is 51151721. The next prime is 51151769. The reversal of 51151767 is 76715115.

It is a de Polignac number, because none of the positive numbers 2^k-51151767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151769) 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, 54123 + ... + 55059.

It is an arithmetic number, because the mean of its divisors is an integer number (4412352).

Almost surely, 2^51151767 is an apocalyptic number.

51151767 is a deficient number, since it is larger than the sum of its proper divisors (19445865).

51151767 is a wasteful number, since it uses less digits than its factorization.

51151767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558.

The product of its digits is 7350, while the sum is 33.

The square root of 51151767 is about 7152.0463505209. The cubic root of 51151767 is about 371.2104670575.

The spelling of 51151767 in words is "fifty-one million, one hundred fifty-one thousand, seven hundred sixty-seven".