2051052551 has 8 divisors (see below), whose sum is σ = 2072410704. Its totient is φ = 2029715200.

The previous prime is 2051052547. The next prime is 2051052557. The reversal of 2051052551 is 1552501502.

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

It is a cyclic number.

It is not a de Polignac number, because 2051052551 - 2² = 2051052547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2051052551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051052557) 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, 264536 + ... + 272178.

It is an arithmetic number, because the mean of its divisors is an integer number (259051338).

Almost surely, 2^2051052551 is an apocalyptic number.

2051052551 is a deficient number, since it is larger than the sum of its proper divisors (21358153).

2051052551 is a wasteful number, since it uses less digits than its factorization.

2051052551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10401.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2051052551 is about 45288.5476804015. The cubic root of 2051052551 is about 1270.5514688125.

The spelling of 2051052551 in words is "two billion, fifty-one million, fifty-two thousand, five hundred fifty-one".