3421551825 has 72 divisors (see below), whose sum is σ = 6588566400. Its totient is φ = 1691902080.

The previous prime is 3421551823. The next prime is 3421551827. The reversal of 3421551825 is 5281551243.

3421551825 is a `hidden beast` number, since 3 + 4 + 21 + 551 + 82 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (3421551823) and next prime (3421551827).

It is not a de Polignac number, because 3421551825 - 2¹ = 3421551823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3421551825.

It is not an unprimeable number, because it can be changed into a prime (3421551823) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 192411 + ... + 209439.

Almost surely, 2^3421551825 is an apocalyptic number.

It is an amenable number.

3421551825 is a deficient number, since it is larger than the sum of its proper divisors (3167014575).

3421551825 is a wasteful number, since it uses less digits than its factorization.

3421551825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111 (or 17103 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 3421551825 is about 58494.0323879283. The cubic root of 3421551825 is about 1506.8650990105.

The spelling of 3421551825 in words is "three billion, four hundred twenty-one million, five hundred fifty-one thousand, eight hundred twenty-five".