5511297428 has 48 divisors (see below), whose sum is σ = 12253430784. Its totient is φ = 2109957120.

The previous prime is 5511297419. The next prime is 5511297437. The reversal of 5511297428 is 8247921155.

It is an interprime number because it is at equal distance from previous prime (5511297419) and next prime (5511297437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232925 + ... + 255492.

It is an arithmetic number, because the mean of its divisors is an integer number (255279808).

Almost surely, 2^5511297428 is an apocalyptic number.

It is an amenable number.

5511297428 is an abundant number, since it is smaller than the sum of its proper divisors (6742133356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5511297428 is a wasteful number, since it uses less digits than its factorization.

5511297428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488472 (or 488470 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 5511297428 is about 74238.1130417523. The cubic root of 5511297428 is about 1766.3819427864.

The spelling of 5511297428 in words is "five billion, five hundred eleven million, two hundred ninety-seven thousand, four hundred twenty-eight".