49921512 has 64 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 15562944.

The previous prime is 49921511. The next prime is 49921517. The reversal of 49921512 is 21512994.

It is a super-2 number, since 2×49921512² = 4984314720732288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49921511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37189 + ... + 38507.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^49921512 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 49921512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528000).

49921512 is an abundant number, since it is smaller than the sum of its proper divisors (83134488).

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

49921512 is a wasteful number, since it uses less digits than its factorization.

49921512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1426 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 49921512 is about 7065.5156924318. The cubic root of 49921512 is about 368.2102807332.

The spelling of 49921512 in words is "forty-nine million, nine hundred twenty-one thousand, five hundred twelve".