51153551 has 8 divisors (see below), whose sum is σ = 51904800. Its totient is φ = 50406400.

The previous prime is 51153539. The next prime is 51153577. The reversal of 51153551 is 15535115.

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

It is a cyclic number.

It is not a de Polignac number, because 51153551 - 2¹⁴ = 51137167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51153551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51153511) 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, 31151 + ... + 32751.

It is an arithmetic number, because the mean of its divisors is an integer number (6488100).

Almost surely, 2^51153551 is an apocalyptic number.

51153551 is a deficient number, since it is larger than the sum of its proper divisors (751249).

51153551 is a wasteful number, since it uses less digits than its factorization.

51153551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049.

The product of its digits is 1875, while the sum is 26.

The square root of 51153551 is about 7152.1710689832. The cubic root of 51153551 is about 371.2147825277.

Adding to 51153551 its reverse (15535115), we get a palindrome (66688666).

The spelling of 51153551 in words is "fifty-one million, one hundred fifty-three thousand, five hundred fifty-one".