51051552 has 48 divisors (see below), whose sum is σ = 134517600. Its totient is φ = 16952832.

The previous prime is 51051547. The next prime is 51051563. The reversal of 51051552 is 25515015.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 29199 + ... + 30897.

It is an arithmetic number, because the mean of its divisors is an integer number (2802450).

Almost surely, 2^51051552 is an apocalyptic number.

It is an amenable number.

51051552 is an abundant number, since it is smaller than the sum of its proper divisors (83466048).

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

51051552 is a wasteful number, since it uses less digits than its factorization.

51051552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 51051552 is about 7145.0368788411. The cubic root of 51051552 is about 370.9678871176.

Adding to 51051552 its reverse (25515015), we get a palindrome (76566567).

The spelling of 51051552 in words is "fifty-one million, fifty-one thousand, five hundred fifty-two".