49509576 has 128 divisors (see below), whose sum is σ = 148176000. Its totient is φ = 15261696.

The previous prime is 49509569. The next prime is 49509587. The reversal of 49509576 is 67590594.

It is a happy number.

49509576 is a `hidden beast` number, since 495 + 0 + 95 + 76 = 666.

It is a super-3 number, since 3×49509576³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356115 + ... + 356253.

It is an arithmetic number, because the mean of its divisors is an integer number (1157625).

Almost surely, 2^49509576 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 49509576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74088000).

49509576 is an abundant number, since it is smaller than the sum of its proper divisors (98666424).

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

49509576 is a wasteful number, since it uses less digits than its factorization.

49509576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 49509576 is about 7036.3041435117. The cubic root of 49509576 is about 367.1946985436.

The spelling of 49509576 in words is "forty-nine million, five hundred nine thousand, five hundred seventy-six".