53951949 has 6 divisors (see below), whose sum is σ = 77930606. Its totient is φ = 35967960.

The previous prime is 53951929. The next prime is 53951959. The reversal of 53951949 is 94915935.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38975049 + 14976900 = 6243^2 + 3870^2 .

It is not a de Polignac number, because 53951949 - 2⁵ = 53951917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53951929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2997322 + ... + 2997339.

Almost surely, 2^53951949 is an apocalyptic number.

It is an amenable number.

53951949 is a deficient number, since it is larger than the sum of its proper divisors (23978657).

53951949 is a wasteful number, since it uses less digits than its factorization.

53951949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994667 (or 5994664 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The square root of 53951949 is about 7345.1990442737. The cubic root of 53951949 is about 377.8641697236.

The spelling of 53951949 in words is "fifty-three million, nine hundred fifty-one thousand, nine hundred forty-nine".