51007541 has 8 divisors (see below), whose sum is σ = 55009080. Its totient is φ = 47017152.

The previous prime is 51007513. The next prime is 51007543. The reversal of 51007541 is 14570015.

It can be written as a sum of positive squares in 4 ways, for example, as 184900 + 50822641 = 430^2 + 7129^2 .

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

It is not a de Polignac number, because 51007541 - 2⁶ = 51007477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51007543) 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, 8411 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (6876135).

Almost surely, 2^51007541 is an apocalyptic number.

It is an amenable number.

51007541 is a deficient number, since it is larger than the sum of its proper divisors (4001539).

51007541 is a wasteful number, since it uses less digits than its factorization.

51007541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51007541 is about 7141.9563846330. The cubic root of 51007541 is about 370.8612539793.

Adding to 51007541 its reverse (14570015), we get a palindrome (65577556).

The spelling of 51007541 in words is "fifty-one million, seven thousand, five hundred forty-one".