5155537890 has 32 divisors (see below), whose sum is σ = 12661045056. Its totient is φ = 1342837440.

The previous prime is 5155537853. The next prime is 5155537913. The reversal of 5155537890 is 987355515.

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, 1996981 + ... + 1999560.

It is an arithmetic number, because the mean of its divisors is an integer number (395657658).

Almost surely, 2^5155537890 is an apocalyptic number.

5155537890 is an abundant number, since it is smaller than the sum of its proper divisors (7505507166).

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

5155537890 is a wasteful number, since it uses less digits than its factorization.

5155537890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996594.

The product of its (nonzero) digits is 945000, while the sum is 48.

The square root of 5155537890 is about 71802.0744129304. The cubic root of 5155537890 is about 1727.5262728274.

The spelling of 5155537890 in words is "five billion, one hundred fifty-five million, five hundred thirty-seven thousand, eight hundred ninety".