51151541 has 12 divisors (see below), whose sum is σ = 59754240. Its totient is φ = 43659000.

The previous prime is 51151537. The next prime is 51151543. The reversal of 51151541 is 14515115.

It is not a de Polignac number, because 51151541 - 2² = 51151537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10220 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 2^51151541 is an apocalyptic number.

It is an amenable number.

51151541 is a deficient number, since it is larger than the sum of its proper divisors (8602699).

51151541 is a wasteful number, since it uses less digits than its factorization.

51151541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4417 counting only the distinct ones).

The product of its digits is 500, while the sum is 23.

The square root of 51151541 is about 7152.0305508296. The cubic root of 51151541 is about 371.2099203597.

Adding to 51151541 its reverse (14515115), we get a palindrome (65666656).

The spelling of 51151541 in words is "fifty-one million, one hundred fifty-one thousand, five hundred forty-one".