2051428551 has 8 divisors (see below), whose sum is σ = 2765971440. Its totient is φ = 1352252352.

The previous prime is 2051428541. The next prime is 2051428559. The reversal of 2051428551 is 1558241502.

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

It is not a de Polignac number, because 2051428551 - 2⁹ = 2051428039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051428559) 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, 3841360 + ... + 3841893.

It is an arithmetic number, because the mean of its divisors is an integer number (345746430).

Almost surely, 2^2051428551 is an apocalyptic number.

2051428551 is a deficient number, since it is larger than the sum of its proper divisors (714542889).

2051428551 is an equidigital number, since it uses as much as digits as its factorization.

2051428551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683345.

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 2051428551 is about 45292.6986500032. The cubic root of 2051428551 is about 1270.6291034499.

The spelling of 2051428551 in words is "two billion, fifty-one million, four hundred twenty-eight thousand, five hundred fifty-one".