5123257780 has 48 divisors (see below), whose sum is σ = 11114804736. Its totient is φ = 1981607040.

The previous prime is 5123257759. The next prime is 5123257781. The reversal of 5123257780 is 877523215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123257781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031062 + ... + 1036018.

It is an arithmetic number, because the mean of its divisors is an integer number (231558432).

Almost surely, 2^5123257780 is an apocalyptic number.

It is an amenable number.

5123257780 is an abundant number, since it is smaller than the sum of its proper divisors (5991546956).

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

5123257780 is a wasteful number, since it uses less digits than its factorization.

5123257780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664 (or 6662 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 5123257780 is about 71576.9360897769. The cubic root of 5123257780 is about 1723.9132304705.

The spelling of 5123257780 in words is "five billion, one hundred twenty-three million, two hundred fifty-seven thousand, seven hundred eighty".