5481266550 has 48 divisors (see below), whose sum is σ = 14032054272. Its totient is φ = 1414519200.

The previous prime is 5481266537. The next prime is 5481266563. The reversal of 5481266550 is 556621845.

It is an interprime number because it is at equal distance from previous prime (5481266537) and next prime (5481266563).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584734 + ... + 594033.

It is an arithmetic number, because the mean of its divisors is an integer number (292334464).

Almost surely, 2^5481266550 is an apocalyptic number.

5481266550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5481266550 is an abundant number, since it is smaller than the sum of its proper divisors (8550787722).

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

5481266550 is a wasteful number, since it uses less digits than its factorization.

5481266550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178813 (or 1178808 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 5481266550 is about 74035.5762454781. The cubic root of 5481266550 is about 1763.1677787481.

The spelling of 5481266550 in words is "five billion, four hundred eighty-one million, two hundred sixty-six thousand, five hundred fifty".