51357867 has 32 divisors (see below), whose sum is σ = 80974080. Its totient is φ = 28600320.

The previous prime is 51357853. The next prime is 51357881. The reversal of 51357867 is 76875315.

It is an interprime number because it is at equal distance from previous prime (51357853) and next prime (51357881).

It is not a de Polignac number, because 51357867 - 2¹⁶ = 51292331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51357067) 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, 23059 + ... + 25187.

It is an arithmetic number, because the mean of its divisors is an integer number (2530440).

Almost surely, 2^51357867 is an apocalyptic number.

51357867 is a deficient number, since it is larger than the sum of its proper divisors (29616213).

51357867 is a wasteful number, since it uses less digits than its factorization.

51357867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203.

The product of its digits is 176400, while the sum is 42.

The square root of 51357867 is about 7166.4403297593. The cubic root of 51357867 is about 371.7083576694.

The spelling of 51357867 in words is "fifty-one million, three hundred fifty-seven thousand, eight hundred sixty-seven".