49515102 has 192 divisors, whose sum is σ = 146065920. Its totient is φ = 11757312.

The previous prime is 49515071. The next prime is 49515107. The reversal of 49515102 is 20151594.

49515102 is a `hidden beast` number, since 49 + 515 + 102 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49515107) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1151493 + ... + 1151535.

It is an arithmetic number, because the mean of its divisors is an integer number (760760).

Almost surely, 2^49515102 is an apocalyptic number.

49515102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49515102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73032960).

49515102 is an abundant number, since it is smaller than the sum of its proper divisors (96550818).

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

49515102 is a wasteful number, since it uses less digits than its factorization.

49515102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 49515102 is about 7036.6968102939. The cubic root of 49515102 is about 367.2083594862.

Adding to 49515102 its reverse (20151594), we get a palindrome (69666696).

The spelling of 49515102 in words is "forty-nine million, five hundred fifteen thousand, one hundred two".