51702053 has 4 divisors (see below), whose sum is σ = 55679148. Its totient is φ = 47724960.

The previous prime is 51702029. The next prime is 51702071. The reversal of 51702053 is 35020715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35020715 = 5 ⋅7004143.

It can be written as a sum of positive squares in 2 ways, for example, as 3912484 + 47789569 = 1978^2 + 6913^2 .

It is a cyclic number.

It is not a de Polignac number, because 51702053 - 2⁶ = 51701989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51702073) 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, 1988528 + ... + 1988553.

It is an arithmetic number, because the mean of its divisors is an integer number (13919787).

Almost surely, 2^51702053 is an apocalyptic number.

It is an amenable number.

51702053 is a deficient number, since it is larger than the sum of its proper divisors (3977095).

51702053 is a wasteful number, since it uses less digits than its factorization.

51702053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977094.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 51702053 is about 7190.4139658298. The cubic root of 51702053 is about 372.5368712658.

Adding to 51702053 its reverse (35020715), we get a palindrome (86722768).

The spelling of 51702053 in words is "fifty-one million, seven hundred two thousand, fifty-three".