5051399040 has 384 divisors, whose sum is σ = 18731606400. Its totient is φ = 1249837056.

The previous prime is 5051399039. The next prime is 5051399051. The reversal of 5051399040 is 409931505.

5051399040 is a `hidden beast` number, since 50 + 513 + 9 + 90 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×5051399040² = 51033264522625843200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5051398986 and 5051399004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7735354 + ... + 7736006.

It is an arithmetic number, because the mean of its divisors is an integer number (48780225).

Almost surely, 2^5051399040 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 5051399040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9365803200).

5051399040 is an abundant number, since it is smaller than the sum of its proper divisors (13680207360).

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

5051399040 is a wasteful number, since it uses less digits than its factorization.

5051399040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 5051399040 is about 71073.1949471810. The cubic root of 5051399040 is about 1715.8153908368.

The spelling of 5051399040 in words is "five billion, fifty-one million, three hundred ninety-nine thousand, forty".