1025545403 has 4 divisors (see below), whose sum is σ = 1028780880. Its totient is φ = 1022309928.

The previous prime is 1025545397. The next prime is 1025545429. The reversal of 1025545403 is 3045455201.

1025545403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3045455201 = 331 ⋅9200771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025545403 is a prime.

It is a super-2 number, since 2×1025545403² = 2103486747228864818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025545453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617263 + ... + 1617896.

It is an arithmetic number, because the mean of its divisors is an integer number (257195220).

Almost surely, 2^1025545403 is an apocalyptic number.

1025545403 is a deficient number, since it is larger than the sum of its proper divisors (3235477).

1025545403 is an equidigital number, since it uses as much as digits as its factorization.

1025545403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235476.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1025545403 is about 32024.1378182146. The cubic root of 1025545403 is about 1008.4436386367.

The spelling of 1025545403 in words is "one billion, twenty-five million, five hundred forty-five thousand, four hundred three".