51962949 has 24 divisors (see below), whose sum is σ = 78368472. Its totient is φ = 33146880.

The previous prime is 51962947. The next prime is 51962951. The reversal of 51962949 is 94926915.

51962949 is a `hidden beast` number, since 5 + 19 + 629 + 4 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (51962947) and next prime (51962951).

It can be written as a sum of positive squares in 4 ways, for example, as 4601025 + 47361924 = 2145^2 + 6882^2 .

It is not a de Polignac number, because 51962949 - 2¹ = 51962947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51962941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18229 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (3265353).

Almost surely, 2^51962949 is an apocalyptic number.

It is an amenable number.

51962949 is a deficient number, since it is larger than the sum of its proper divisors (26405523).

51962949 is a wasteful number, since it uses less digits than its factorization.

51962949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2754 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 51962949 is about 7208.5330685237. The cubic root of 51962949 is about 373.1624450859.

The spelling of 51962949 in words is "fifty-one million, nine hundred sixty-two thousand, nine hundred forty-nine".