2003438331525 has 12 divisors (see below), whose sum is σ = 3312351374912. Its totient is φ = 1068500443440.

The previous prime is 2003438331497. The next prime is 2003438331527. The reversal of 2003438331525 is 5251338343002.

It is not a de Polignac number, because 2003438331525 - 2⁵ = 2003438331493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003438331527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13356255469 + ... + 13356255618.

Almost surely, 2^{2003438331525} is an apocalyptic number.

2003438331525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2003438331525 is a deficient number, since it is larger than the sum of its proper divisors (1308913043387).

2003438331525 is a wasteful number, since it uses less digits than its factorization.

2003438331525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26712511100 (or 26712511095 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 2003438331525 in words is "two trillion, three billion, four hundred thirty-eight million, three hundred thirty-one thousand, five hundred twenty-five".