1355399425 has 12 divisors (see below), whose sum is σ = 1692790960. Its totient is φ = 1076515920.

The previous prime is 1355399401. The next prime is 1355399449. The reversal of 1355399425 is 5249935531.

It is an interprime number because it is at equal distance from previous prime (1355399401) and next prime (1355399449).

It is not a de Polignac number, because 1355399425 - 2¹¹ = 1355397377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191547 + ... + 198496.

Almost surely, 2^1355399425 is an apocalyptic number.

It is an amenable number.

1355399425 is a deficient number, since it is larger than the sum of its proper divisors (337391535).

1355399425 is a wasteful number, since it uses less digits than its factorization.

1355399425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390192 (or 390187 counting only the distinct ones).

The product of its digits is 729000, while the sum is 46.

The square root of 1355399425 is about 36815.7496867849. The cubic root of 1355399425 is about 1106.6809452340.

The spelling of 1355399425 in words is "one billion, three hundred fifty-five million, three hundred ninety-nine thousand, four hundred twenty-five".