2051428550 has 24 divisors (see below), whose sum is σ = 3863964000. Its totient is φ = 810182880.

The previous prime is 2051428541. The next prime is 2051428559. The reversal of 2051428550 is 558241502.

It is an interprime number because it is at equal distance from previous prime (2051428541) and next prime (2051428559).

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 11 ways as a sum of consecutive naturals, for example, 255725 + ... + 263624.

It is an arithmetic number, because the mean of its divisors is an integer number (160998500).

Almost surely, 2^2051428550 is an apocalyptic number.

2051428550 is a deficient number, since it is larger than the sum of its proper divisors (1812535450).

2051428550 is a wasteful number, since it uses less digits than its factorization.

2051428550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519440 (or 519435 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 2051428550 is about 45292.6986389639. The cubic root of 2051428550 is about 1270.6291032434.

The spelling of 2051428550 in words is "two billion, fifty-one million, four hundred twenty-eight thousand, five hundred fifty".