2051225001 has 48 divisors (see below), whose sum is σ = 3472982656. Its totient is φ = 1142201088.

The previous prime is 2051224969. The next prime is 2051225021. The reversal of 2051225001 is 1005221502.

It is not a de Polignac number, because 2051225001 - 2⁵ = 2051224969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051225021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1985181 + ... + 1986213.

Almost surely, 2^2051225001 is an apocalyptic number.

2051225001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2051225001 is a deficient number, since it is larger than the sum of its proper divisors (1421757655).

2051225001 is a wasteful number, since it uses less digits than its factorization.

2051225001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2051225001 is about 45290.4515433441. The cubic root of 2051225001 is about 1270.5870766212.

Adding to 2051225001 its reverse (1005221502), we get a palindrome (3056446503).

The spelling of 2051225001 in words is "two billion, fifty-one million, two hundred twenty-five thousand, one".