51146046 has 64 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 14529888.

The previous prime is 51146033. The next prime is 51146059. The reversal of 51146046 is 64064115.

51146046 is a `hidden beast` number, since 51 + 1 + 4 + 604 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (51146033) and next prime (51146059).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101431 + ... + 101933.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^51146046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51146046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65318400).

51146046 is an abundant number, since it is smaller than the sum of its proper divisors (79490754).

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

51146046 is a wasteful number, since it uses less digits than its factorization.

51146046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51146046 is about 7151.6463838755. The cubic root of 51146046 is about 371.1966273645.

The spelling of 51146046 in words is "fifty-one million, one hundred forty-six thousand, forty-six".