54553513 has 6 divisors (see below), whose sum is σ = 63460266. Its totient is φ = 46760112.

The previous prime is 54553507. The next prime is 54553517. The reversal of 54553513 is 31535545.

It can be written as a sum of positive squares in only one way, i.e., 45535504 + 9018009 = 6748^2 + 3003^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54553513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54553517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556620 + ... + 556717.

It is an arithmetic number, because the mean of its divisors is an integer number (10576711).

Almost surely, 2^54553513 is an apocalyptic number.

It is an amenable number.

54553513 is a deficient number, since it is larger than the sum of its proper divisors (8906753).

54553513 is a wasteful number, since it uses less digits than its factorization.

54553513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113351 (or 1113344 counting only the distinct ones).

The product of its digits is 22500, while the sum is 31.

The square root of 54553513 is about 7386.0349985632. The cubic root of 54553513 is about 379.2633767775.

The spelling of 54553513 in words is "fifty-four million, five hundred fifty-three thousand, five hundred thirteen".