53749829 has 16 divisors (see below), whose sum is σ = 62619648. Its totient is φ = 45187632.

The previous prime is 53749807. The next prime is 53749831. The reversal of 53749829 is 92894735.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-53749829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53749429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91274 + ... + 91860.

It is an arithmetic number, because the mean of its divisors is an integer number (3913728).

Almost surely, 2^53749829 is an apocalyptic number.

It is an amenable number.

53749829 is a deficient number, since it is larger than the sum of its proper divisors (8869819).

53749829 is a wasteful number, since it uses less digits than its factorization.

53749829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its digits is 544320, while the sum is 47.

The square root of 53749829 is about 7331.4274871951. The cubic root of 53749829 is about 377.3917155028.

The spelling of 53749829 in words is "fifty-three million, seven hundred forty-nine thousand, eight hundred twenty-nine".