51466040 has 32 divisors (see below), whose sum is σ = 116091360. Its totient is φ = 20534400.

The previous prime is 51466033. The next prime is 51466043. The reversal of 51466040 is 4066415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51466043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17045 + ... + 19835.

It is an arithmetic number, because the mean of its divisors is an integer number (3627855).

Almost surely, 2^51466040 is an apocalyptic number.

It is an amenable number.

51466040 is an abundant number, since it is smaller than the sum of its proper divisors (64625320).

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

51466040 is a wasteful number, since it uses less digits than its factorization.

51466040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51466040 is about 7173.9835516957. The cubic root of 51466040 is about 371.9691460902.

The spelling of 51466040 in words is "fifty-one million, four hundred sixty-six thousand, forty".