49811512 has 8 divisors (see below), whose sum is σ = 93396600. Its totient is φ = 24905752.

The previous prime is 49811471. The next prime is 49811519. The reversal of 49811512 is 21511894.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×49811512² = 4962373455452288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49811519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113212 + ... + 3113227.

It is an arithmetic number, because the mean of its divisors is an integer number (11674575).

Almost surely, 2^49811512 is an apocalyptic number.

It is an amenable number.

49811512 is a deficient number, since it is larger than the sum of its proper divisors (43585088).

49811512 is a wasteful number, since it uses less digits than its factorization.

49811512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226445 (or 6226441 counting only the distinct ones).

The product of its digits is 2880, while the sum is 31.

The square root of 49811512 is about 7057.7271128884. The cubic root of 49811512 is about 367.9396364443.

The spelling of 49811512 in words is "forty-nine million, eight hundred eleven thousand, five hundred twelve".