54512503 has 4 divisors (see below), whose sum is σ = 54603808. Its totient is φ = 54421200.

The previous prime is 54512453. The next prime is 54512509. The reversal of 54512503 is 30521545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54512503 - 2²¹ = 52415351 is a prime.

It is a super-2 number, since 2×54512503² = 5943225966650018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54512509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44751 + ... + 45952.

It is an arithmetic number, because the mean of its divisors is an integer number (13650952).

Almost surely, 2^54512503 is an apocalyptic number.

54512503 is a deficient number, since it is larger than the sum of its proper divisors (91305).

54512503 is an equidigital number, since it uses as much as digits as its factorization.

54512503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91304.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 54512503 is about 7383.2582915675. The cubic root of 54512503 is about 379.1683172707.

The spelling of 54512503 in words is "fifty-four million, five hundred twelve thousand, five hundred three".