51893149 has 24 divisors (see below), whose sum is σ = 65729664. Its totient is φ = 40101600.

The previous prime is 51893147. The next prime is 51893189. The reversal of 51893149 is 94139815.

It is not a de Polignac number, because 51893149 - 2¹ = 51893147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51893143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166704 + ... + 167014.

It is an arithmetic number, because the mean of its divisors is an integer number (2738736).

Almost surely, 2^51893149 is an apocalyptic number.

It is an amenable number.

51893149 is a deficient number, since it is larger than the sum of its proper divisors (13836515).

51893149 is a wasteful number, since it uses less digits than its factorization.

51893149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 526 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 51893149 is about 7203.6899572372. The cubic root of 51893149 is about 372.9952848918.

It can be divided in two parts, 5189 and 3149, that added together give a palindrome (8338).

The spelling of 51893149 in words is "fifty-one million, eight hundred ninety-three thousand, one hundred forty-nine".