2475000021 has 32 divisors (see below), whose sum is σ = 3783024000. Its totient is φ = 1426664448.

The previous prime is 2474999999. The next prime is 2475000023. The reversal of 2475000021 is 1200005742.

It is not a de Polignac number, because 2475000021 - 2¹³ = 2474991829 is a prime.

It is a super-2 number, since 2×2475000021² = 12251250207900000882, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2475000023) 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 31 ways as a sum of consecutive naturals, for example, 47185 + ... + 84713.

It is an arithmetic number, because the mean of its divisors is an integer number (118219500).

Almost surely, 2^2475000021 is an apocalyptic number.

It is an amenable number.

2475000021 is a deficient number, since it is larger than the sum of its proper divisors (1308023979).

2475000021 is a wasteful number, since it uses less digits than its factorization.

2475000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37653.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2475000021 is about 49749.3720663889. The cubic root of 2475000021 is about 1352.6696183234.

Adding to 2475000021 its reverse (1200005742), we get a palindrome (3675005763).

The spelling of 2475000021 in words is "two billion, four hundred seventy-five million, twenty-one", and thus it is an aban number.