25380083421 has 24 divisors (see below), whose sum is σ = 45706125504. Its totient is φ = 13184458560.

The previous prime is 25380083413. The next prime is 25380083423. The reversal of 25380083421 is 12438008352.

25380083421 is a `hidden beast` number, since 2 + 538 + 0 + 0 + 83 + 42 + 1 = 666.

It is not a de Polignac number, because 25380083421 - 2³ = 25380083413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25380083423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18311056 + ... + 18312441.

It is an arithmetic number, because the mean of its divisors is an integer number (1904421896).

Almost surely, 2^25380083421 is an apocalyptic number.

25380083421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25380083421 is a deficient number, since it is larger than the sum of its proper divisors (20326042083).

25380083421 is a wasteful number, since it uses less digits than its factorization.

25380083421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36623521 (or 36623518 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 25380083421 in words is "twenty-five billion, three hundred eighty million, eighty-three thousand, four hundred twenty-one".