51452115 has 96 divisors (see below), whose sum is σ = 103977216. Its totient is φ = 21411840.

The previous prime is 51452111. The next prime is 51452129. The reversal of 51452115 is 51125415.

It is not a de Polignac number, because 51452115 - 2² = 51452111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 619864 + ... + 619946.

It is an arithmetic number, because the mean of its divisors is an integer number (1083096).

Almost surely, 2^51452115 is an apocalyptic number.

51452115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51452115 is an abundant number, since it is smaller than the sum of its proper divisors (52525101).

51452115 is a wasteful number, since it uses less digits than its factorization.

51452115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 132 counting only the distinct ones).

The product of its digits is 1000, while the sum is 24.

The square root of 51452115 is about 7173.0129652748. The cubic root of 51452115 is about 371.9355955678.

It can be divided in two parts, 5145 and 2115, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 51452115 in words is "fifty-one million, four hundred fifty-two thousand, one hundred fifteen".