54512137 has 4 divisors (see below), whose sum is σ = 55985476. Its totient is φ = 53038800.

The previous prime is 54512131. The next prime is 54512147. The reversal of 54512137 is 73121545.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 31125241 = 4836^2 + 5579^2 .

It is a cyclic number.

It is not a de Polignac number, because 54512137 - 2¹¹ = 54510089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54512131) 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, 736614 + ... + 736687.

It is an arithmetic number, because the mean of its divisors is an integer number (13996369).

Almost surely, 2^54512137 is an apocalyptic number.

It is an amenable number.

54512137 is a deficient number, since it is larger than the sum of its proper divisors (1473339).

54512137 is a wasteful number, since it uses less digits than its factorization.

54512137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473338.

The product of its digits is 4200, while the sum is 28.

The square root of 54512137 is about 7383.2335057209. The cubic root of 54512137 is about 379.1674686830.

The spelling of 54512137 in words is "fifty-four million, five hundred twelve thousand, one hundred thirty-seven".