51552453 has 16 divisors (see below), whose sum is σ = 75502080. Its totient is φ = 31143024.

The previous prime is 51552439. The next prime is 51552463. The reversal of 51552453 is 35425515.

It is a happy number.

It is not a de Polignac number, because 51552453 - 2⁴ = 51552437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51552453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18351 + ... + 20972.

It is an arithmetic number, because the mean of its divisors is an integer number (4718880).

Almost surely, 2^51552453 is an apocalyptic number.

It is an amenable number.

51552453 is a deficient number, since it is larger than the sum of its proper divisors (23949627).

51552453 is a wasteful number, since it uses less digits than its factorization.

51552453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39368.

The product of its digits is 15000, while the sum is 30.

The square root of 51552453 is about 7180.0036908069. The cubic root of 51552453 is about 372.1772120752.

Adding to 51552453 its reverse (35425515), we get a palindrome (86977968).

The spelling of 51552453 in words is "fifty-one million, five hundred fifty-two thousand, four hundred fifty-three".