51822858 has 32 divisors (see below), whose sum is σ = 106758144. Its totient is φ = 16762032.

The previous prime is 51822857. The next prime is 51822877. The reversal of 51822858 is 85822815.

It is a super-2 number, since 2×51822858² = 5371217222576328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51822857) 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, 35091 + ... + 36537.

It is an arithmetic number, because the mean of its divisors is an integer number (3336192).

Almost surely, 2^51822858 is an apocalyptic number.

51822858 is an abundant number, since it is smaller than the sum of its proper divisors (54935286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51822858 is a wasteful number, since it uses less digits than its factorization.

51822858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its digits is 51200, while the sum is 39.

The square root of 51822858 is about 7198.8094849079. The cubic root of 51822858 is about 372.8267972795.

The spelling of 51822858 in words is "fifty-one million, eight hundred twenty-two thousand, eight hundred fifty-eight".