5497990901 has 4 divisors (see below), whose sum is σ = 5920913292. Its totient is φ = 5075068512.

The previous prime is 5497990889. The next prime is 5497990991. The reversal of 5497990901 is 1090997945.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2127607876 + 3370383025 = 46126^2 + 58055^2 .

It is a cyclic number.

It is not a de Polignac number, because 5497990901 - 2⁶ = 5497990837 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 (5497990991) 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, 211461176 + ... + 211461201.

It is an arithmetic number, because the mean of its divisors is an integer number (1480228323).

Almost surely, 2^5497990901 is an apocalyptic number.

It is an amenable number.

5497990901 is a deficient number, since it is larger than the sum of its proper divisors (422922391).

5497990901 is a wasteful number, since it uses less digits than its factorization.

5497990901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422922390.

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 5497990901 is about 74148.4382910389. The cubic root of 5497990901 is about 1764.9592075681.

The spelling of 5497990901 in words is "five billion, four hundred ninety-seven million, nine hundred ninety thousand, nine hundred one".