54525749 has 4 divisors (see below), whose sum is σ = 57733164. Its totient is φ = 51318336.

The previous prime is 54525733. The next prime is 54525803. The reversal of 54525749 is 94752545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94752545 = 5 ⋅18950509.

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 9394225 = 6718^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 54525749 - 2⁴ = 54525733 is a prime.

It is a super-2 number, since 2×54525749² = 5946114608022002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54525719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603682 + ... + 1603715.

It is an arithmetic number, because the mean of its divisors is an integer number (14433291).

Almost surely, 2^54525749 is an apocalyptic number.

It is an amenable number.

54525749 is a deficient number, since it is larger than the sum of its proper divisors (3207415).

54525749 is a wasteful number, since it uses less digits than its factorization.

54525749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207414.

The product of its digits is 252000, while the sum is 41.

The square root of 54525749 is about 7384.1552665149. The cubic root of 54525749 is about 379.1990261693.

The spelling of 54525749 in words is "fifty-four million, five hundred twenty-five thousand, seven hundred forty-nine".