51494962 has 4 divisors (see below), whose sum is σ = 77242446. Its totient is φ = 25747480.

The previous prime is 51494957. The next prime is 51494969. The reversal of 51494962 is 26949415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 3345241 = 6939^2 + 1829^2 .

It is a super-2 number, since 2×51494962² = 5303462222762888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51494969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12873739 + ... + 12873742.

Almost surely, 2^51494962 is an apocalyptic number.

51494962 is a deficient number, since it is larger than the sum of its proper divisors (25747484).

51494962 is a wasteful number, since it uses less digits than its factorization.

51494962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25747483.

The product of its digits is 77760, while the sum is 40.

The square root of 51494962 is about 7175.9990245261. Note that the first 3 decimals coincide. The cubic root of 51494962 is about 372.0388106500.

The spelling of 51494962 in words is "fifty-one million, four hundred ninety-four thousand, nine hundred sixty-two".