51452253 has 20 divisors (see below), whose sum is σ = 78740508. Its totient is φ = 33462720.

The previous prime is 51452231. The next prime is 51452267. The reversal of 51452253 is 35225415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2424249 + 49028004 = 1557^2 + 7002^2 .

It is not a de Polignac number, because 51452253 - 2¹⁶ = 51386717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4426 + ... + 11067.

Almost surely, 2^51452253 is an apocalyptic number.

It is an amenable number.

51452253 is a deficient number, since it is larger than the sum of its proper divisors (27288255).

51452253 is a wasteful number, since it uses less digits than its factorization.

51452253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546 (or 15537 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 51452253 is about 7173.0225846570. The cubic root of 51452253 is about 371.9359280910.

Adding to 51452253 its reverse (35225415), we get a palindrome (86677668).

The spelling of 51452253 in words is "fifty-one million, four hundred fifty-two thousand, two hundred fifty-three".