54352521 has 18 divisors (see below), whose sum is σ = 82863690. Its totient is φ = 34325856.

The previous prime is 54352499. The next prime is 54352541. The reversal of 54352521 is 12525345.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49154121 + 5198400 = 7011^2 + 2280^2 .

It is not a de Polignac number, because 54352521 - 2¹¹ = 54350473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54352541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5116 + ... + 11613.

Almost surely, 2^54352521 is an apocalyptic number.

It is an amenable number.

54352521 is a deficient number, since it is larger than the sum of its proper divisors (28511169).

54352521 is a wasteful number, since it uses less digits than its factorization.

54352521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16773 (or 16751 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 54352521 is about 7372.4162253633. The cubic root of 54352521 is about 378.7970290914.

Adding to 54352521 its reverse (12525345), we get a palindrome (66877866).

The spelling of 54352521 in words is "fifty-four million, three hundred fifty-two thousand, five hundred twenty-one".