1525050030 has 64 divisors (see below), whose sum is σ = 4268390400. Its totient is φ = 348580512.

The previous prime is 1525050017. The next prime is 1525050073. The reversal of 1525050030 is 300505251.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1525049979 and 1525050006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63814 + ... + 84393.

It is an arithmetic number, because the mean of its divisors is an integer number (66693600).

Almost surely, 2^1525050030 is an apocalyptic number.

1525050030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1525050030 is an abundant number, since it is smaller than the sum of its proper divisors (2743340370).

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

1525050030 is a wasteful number, since it uses less digits than its factorization.

1525050030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148238 (or 148224 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 1525050030 is about 39051.8889427900. Note that the first 3 decimals coincide. The cubic root of 1525050030 is about 1151.0513460503.

Adding to 1525050030 its reverse (300505251), we get a palindrome (1825555281).

The spelling of 1525050030 in words is "one billion, five hundred twenty-five million, fifty thousand, thirty".