51963075 has 36 divisors (see below), whose sum is σ = 93728128. Its totient is φ = 27518400.

The previous prime is 51963073. The next prime is 51963089. The reversal of 51963075 is 57036915.

It is a happy number.

51963075 is a `hidden beast` number, since 5 + 19 + 630 + 7 + 5 = 666.

It is not a de Polignac number, because 51963075 - 2¹ = 51963073 is a prime.

It is a super-2 number, since 2×51963075² = 5400322326911250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51963073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34590 + ... + 36060.

Almost surely, 2^51963075 is an apocalyptic number.

51963075 is a deficient number, since it is larger than the sum of its proper divisors (41765053).

51963075 is a wasteful number, since it uses less digits than its factorization.

51963075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 51963075 is about 7208.5418081606. The cubic root of 51963075 is about 373.1627467010.

The spelling of 51963075 in words is "fifty-one million, nine hundred sixty-three thousand, seventy-five".