20070051 has 16 divisors (see below), whose sum is σ = 28044288. Its totient is φ = 12751200.

The previous prime is 20070049. The next prime is 20070101. The reversal of 20070051 is 15007002.

It is a happy number.

It is not a de Polignac number, because 20070051 - 2¹ = 20070049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20070051.

It is not an unprimeable number, because it can be changed into a prime (20070031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4621 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (1752768).

Almost surely, 2^20070051 is an apocalyptic number.

20070051 is a deficient number, since it is larger than the sum of its proper divisors (7974237).

20070051 is a wasteful number, since it uses less digits than its factorization.

20070051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 20070051 is about 4479.9610489378. The cubic root of 20070051 is about 271.7583051576.

Adding to 20070051 its reverse (15007002), we get a palindrome (35077053).

It can be divided in two parts, 2007005 and 1, that added together give a triangular number (2007006 = T₂₀₀₃).

The spelling of 20070051 in words is "twenty million, seventy thousand, fifty-one".