51064460 has 12 divisors (see below), whose sum is σ = 107235408. Its totient is φ = 20425776.

The previous prime is 51064459. The next prime is 51064463. The reversal of 51064460 is 6446015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51064463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276592 + ... + 1276631.

It is an arithmetic number, because the mean of its divisors is an integer number (8936284).

Almost surely, 2^51064460 is an apocalyptic number.

It is an amenable number.

51064460 is an abundant number, since it is smaller than the sum of its proper divisors (56170948).

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

51064460 is a wasteful number, since it uses less digits than its factorization.

51064460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553232 (or 2553230 counting only the distinct ones).

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

The square root of 51064460 is about 7145.9401061022. The cubic root of 51064460 is about 370.9991499606. Note that the first 3 decimals are identical.

The spelling of 51064460 in words is "fifty-one million, sixty-four thousand, four hundred sixty".