5401940903 has 4 divisors (see below), whose sum is σ = 5452426440. Its totient is φ = 5351455368.

The previous prime is 5401940899. The next prime is 5401940923. The reversal of 5401940903 is 3090491045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5401940903 - 2² = 5401940899 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 (5401940923) 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, 25242608 + ... + 25242821.

It is an arithmetic number, because the mean of its divisors is an integer number (1363106610).

Almost surely, 2^5401940903 is an apocalyptic number.

5401940903 is a deficient number, since it is larger than the sum of its proper divisors (50485537).

5401940903 is a wasteful number, since it uses less digits than its factorization.

5401940903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50485536.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 5401940903 is about 73497.8972692417. The cubic root of 5401940903 is about 1754.6208116312.

The spelling of 5401940903 in words is "five billion, four hundred one million, nine hundred forty thousand, nine hundred three".