49992815520 has 192 divisors, whose sum is σ = 175729357440. Its totient is φ = 13273933824.

The previous prime is 49992815473. The next prime is 49992815567. The reversal of 49992815520 is 2551829994.

49992815520 is a `hidden beast` number, since 4 + 9 + 9 + 9 + 2 + 81 + 552 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (49992815473) and next prime (49992815567).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981727 + ... + 1031393.

It is an arithmetic number, because the mean of its divisors is an integer number (915257070).

Almost surely, 2^49992815520 is an apocalyptic number.

49992815520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49992815520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87864678720).

49992815520 is an abundant number, since it is smaller than the sum of its proper divisors (125736541920).

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

49992815520 is a wasteful number, since it uses less digits than its factorization.

49992815520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49924 (or 49910 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 49992815520 in words is "forty-nine billion, nine hundred ninety-two million, eight hundred fifteen thousand, five hundred twenty".