5526621387 has 32 divisors (see below), whose sum is σ = 9373056000. Its totient is φ = 3152732544.

The previous prime is 5526621337. The next prime is 5526621389. The reversal of 5526621387 is 7831266255.

5526621387 is a `hidden beast` number, since 5 + 5 + 266 + 2 + 1 + 387 = 666.

It is not a de Polignac number, because 5526621387 - 2¹⁵ = 5526588619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5526621389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88803 + ... + 137619.

It is an arithmetic number, because the mean of its divisors is an integer number (292908000).

Almost surely, 2^5526621387 is an apocalyptic number.

5526621387 is a deficient number, since it is larger than the sum of its proper divisors (3846434613).

5526621387 is a wasteful number, since it uses less digits than its factorization.

5526621387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49432 (or 49426 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 5526621387 is about 74341.2495657693. The cubic root of 5526621387 is about 1768.0175477321.

The spelling of 5526621387 in words is "five billion, five hundred twenty-six million, six hundred twenty-one thousand, three hundred eighty-seven".