49801249 has 3 divisors (see below), whose sum is σ = 49808307. Its totient is φ = 49794192.

The previous prime is 49801243. The next prime is 49801259. The reversal of 49801249 is 94210894.

It is a happy number.

The square root of 49801249 is 7057.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 49773025 + 28224 = 7055^2 + 168^2 .

It is not a de Polignac number, because 49801249 - 2⁵ = 49801217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49801243) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3529 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (16602769).

Almost surely, 2^49801249 is an apocalyptic number.

49801249 is the 7057-th square number.

49801249 is the 3529-th centered octagonal number.

It is an amenable number.

49801249 is a deficient number, since it is larger than the sum of its proper divisors (7058).

49801249 is an frugal number, since it uses more digits than its factorization.

49801249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14114 (or 7057 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The cubic root of 49801249 is about 367.9143650180.

Multiplying 49801249 by its product of nonzero digits (20736), we get a square (1032678699264 = 1016208²).

The spelling of 49801249 in words is "forty-nine million, eight hundred one thousand, two hundred forty-nine".