2051521054 has 8 divisors (see below), whose sum is σ = 3357034488. Its totient is φ = 932509560.

The previous prime is 2051521033. The next prime is 2051521061. The reversal of 2051521054 is 4501251502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46625457 + ... + 46625500.

It is an arithmetic number, because the mean of its divisors is an integer number (419629311).

Almost surely, 2^2051521054 is an apocalyptic number.

2051521054 is a deficient number, since it is larger than the sum of its proper divisors (1305513434).

2051521054 is a wasteful number, since it uses less digits than its factorization.

2051521054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93250970.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2051521054 is about 45293.7198074965. The cubic root of 2051521054 is about 1270.6482015620.

Adding to 2051521054 its reverse (4501251502), we get a palindrome (6552772556).

The spelling of 2051521054 in words is "two billion, fifty-one million, five hundred twenty-one thousand, fifty-four".