1520198050 has 72 divisors (see below), whose sum is σ = 3299109156. Its totient is φ = 519644160.

The previous prime is 1520198047. The next prime is 1520198051. The reversal of 1520198050 is 508910251.

It can be written as a sum of positive squares in 6 ways, for example, as 486511249 + 1033686801 = 22057^2 + 32151^2 .

It is a super-2 number, since 2×1520198050² = 4622004222447605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520198051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1060134 + ... + 1061566.

Almost surely, 2^1520198050 is an apocalyptic number.

1520198050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520198050 is an abundant number, since it is smaller than the sum of its proper divisors (1778911106).

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

1520198050 is a wasteful number, since it uses less digits than its factorization.

1520198050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 1520198050 is about 38989.7172341632. The cubic root of 1520198050 is about 1149.8293508600.

The spelling of 1520198050 in words is "one billion, five hundred twenty million, one hundred ninety-eight thousand, fifty".