51001452 has 54 divisors (see below), whose sum is σ = 131148108. Its totient is φ = 16711344.

The previous prime is 51001441. The next prime is 51001469. The reversal of 51001452 is 25410015.

It is a super-2 number, since 2×51001452² = 5202296212216608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 224563 + ... + 224789.

Almost surely, 2^51001452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51001452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65574054).

51001452 is an abundant number, since it is smaller than the sum of its proper divisors (80146656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51001452 is a wasteful number, since it uses less digits than its factorization.

51001452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51001452 is about 7141.5300881534. The cubic root of 51001452 is about 370.8464962658.

Adding to 51001452 its reverse (25410015), we get a palindrome (76411467).

The spelling of 51001452 in words is "fifty-one million, one thousand, four hundred fifty-two".