51452141 has 4 divisors (see below), whose sum is σ = 55410012. Its totient is φ = 47494272.

The previous prime is 51452129. The next prime is 51452143. The reversal of 51452141 is 14125415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14125415 = 5 ⋅2825083.

It can be written as a sum of positive squares in 2 ways, for example, as 8497225 + 42954916 = 2915^2 + 6554^2 .

It is a cyclic number.

It is not a de Polignac number, because 51452141 - 2⁶ = 51452077 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 (51452143) 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, 1978916 + ... + 1978941.

It is an arithmetic number, because the mean of its divisors is an integer number (13852503).

Almost surely, 2^51452141 is an apocalyptic number.

It is an amenable number.

51452141 is a deficient number, since it is larger than the sum of its proper divisors (3957871).

51452141 is a wasteful number, since it uses less digits than its factorization.

51452141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957870.

The product of its digits is 800, while the sum is 23.

The square root of 51452141 is about 7173.0147776231. The cubic root of 51452141 is about 371.9356582172.

Adding to 51452141 its reverse (14125415), we get a palindrome (65577556).

The spelling of 51452141 in words is "fifty-one million, four hundred fifty-two thousand, one hundred forty-one".