49990520 has 32 divisors (see below), whose sum is σ = 118400400. Its totient is φ = 18943488.

The previous prime is 49990511. The next prime is 49990529. The reversal of 49990520 is 2509994.

It is an interprime number because it is at equal distance from previous prime (49990511) and next prime (49990529).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49990529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32129 + ... + 33648.

Almost surely, 2^49990520 is an apocalyptic number.

49990520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49990520 is an abundant number, since it is smaller than the sum of its proper divisors (68409880).

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

49990520 is a wasteful number, since it uses less digits than its factorization.

49990520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65807 (or 65803 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 49990520 is about 7070.3974428599. The cubic root of 49990520 is about 368.3798653133.

It can be divided in two parts, 499 and 90520, that added together give a palindrome (91019).

The spelling of 49990520 in words is "forty-nine million, nine hundred ninety thousand, five hundred twenty".