5157625640 has 64 divisors (see below), whose sum is σ = 12201786000. Its totient is φ = 1959229440.

The previous prime is 5157625621. The next prime is 5157625661. The reversal of 5157625640 is 465267515.

It can be written as a sum of positive squares in 8 ways, for example, as 1981852324 + 3175773316 = 44518^2 + 56354^2 .

It is a super-2 number, since 2×5157625640² = 53202204484770819200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34316 + ... + 107204.

Almost surely, 2^5157625640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5157625640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6100893000).

5157625640 is an abundant number, since it is smaller than the sum of its proper divisors (7044160360).

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

5157625640 is a wasteful number, since it uses less digits than its factorization.

5157625640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72990 (or 72986 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 5157625640 is about 71816.6111703971. The cubic root of 5157625640 is about 1727.7594302801.

The spelling of 5157625640 in words is "five billion, one hundred fifty-seven million, six hundred twenty-five thousand, six hundred forty".