49409287524 has 135 divisors (see below), whose sum is σ = 132216148603. Its totient is φ = 16089660288.

The previous prime is 49409287507. The next prime is 49409287537. The reversal of 49409287524 is 42578290494.

It is a happy number.

The square root of 49409287524 is 222282.

It is a perfect power (a square), and thus also a powerful number.

49409287524 is a `hidden beast` number, since 4 + 94 + 0 + 9 + 28 + 7 + 524 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 391327524 + 49017960000 = 19782^2 + 221400^2 .

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 212056912 + ... + 212057144.

Almost surely, 2^49409287524 is an apocalyptic number.

49409287524 is the 222282-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49409287524

49409287524 is an abundant number, since it is smaller than the sum of its proper divisors (82806861079).

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

49409287524 is an equidigital number, since it uses as much as digits as its factorization.

49409287524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 49409287524 in words is "forty-nine billion, four hundred nine million, two hundred eighty-seven thousand, five hundred twenty-four".