21514130625 has 40 divisors (see below), whose sum is σ = 38602793152. Its totient is φ = 10591560000.

The previous prime is 21514130611. The next prime is 21514130639. The reversal of 21514130625 is 52603141512.

It is an interprime number because it is at equal distance from previous prime (21514130611) and next prime (21514130639).

It is not a de Polignac number, because 21514130625 - 2¹⁰ = 21514129601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21514130592 and 21514130601.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 416941 + ... + 465690.

Almost surely, 2^21514130625 is an apocalyptic number.

21514130625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21514130625 is a deficient number, since it is larger than the sum of its proper divisors (17088662527).

21514130625 is an equidigital number, since it uses as much as digits as its factorization.

21514130625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882667 (or 882652 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 21514130625 in words is "twenty-one billion, five hundred fourteen million, one hundred thirty thousand, six hundred twenty-five".