51001064 has 8 divisors (see below), whose sum is σ = 95627010. Its totient is φ = 25500528.

The previous prime is 51001043. The next prime is 51001109. The reversal of 51001064 is 46010015.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27478564 + 23522500 = 5242^2 + 4850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51001064² = 5202217058264192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187559 + ... + 3187574.

Almost surely, 2^51001064 is an apocalyptic number.

It is an amenable number.

51001064 is a deficient number, since it is larger than the sum of its proper divisors (44625946).

51001064 is a wasteful number, since it uses less digits than its factorization.

51001064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375139 (or 6375135 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51001064 is about 7141.5029230548. The cubic root of 51001064 is about 370.8455558429.

Adding to 51001064 its reverse (46010015), we get a palindrome (97011079).

The spelling of 51001064 in words is "fifty-one million, one thousand, sixty-four".