51149541 has 8 divisors (see below), whose sum is σ = 68280160. Its totient is φ = 34059312.

The previous prime is 51149513. The next prime is 51149551. The reversal of 51149541 is 14594115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51149541 - 2⁶ = 51149477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51149499 and 51149508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51149551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7006 + ... + 12303.

It is an arithmetic number, because the mean of its divisors is an integer number (8535020).

Almost surely, 2^51149541 is an apocalyptic number.

It is an amenable number.

51149541 is a deficient number, since it is larger than the sum of its proper divisors (17130619).

51149541 is a wasteful number, since it uses less digits than its factorization.

51149541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20195.

The product of its digits is 3600, while the sum is 30.

The square root of 51149541 is about 7151.8907290310. The cubic root of 51149541 is about 371.2050822551.

The spelling of 51149541 in words is "fifty-one million, one hundred forty-nine thousand, five hundred forty-one".