1520426250 has 240 divisors, whose sum is σ = 4824705600. Its totient is φ = 338688000.

The previous prime is 1520426213. The next prime is 1520426269. The reversal of 1520426250 is 526240251.

1520426250 is a `hidden beast` number, since 15 + 20 + 4 + 2 + 625 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3386026 + ... + 3386474.

It is an arithmetic number, because the mean of its divisors is an integer number (20102940).

Almost surely, 2^1520426250 is an apocalyptic number.

1520426250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520426250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412352800).

1520426250 is an abundant number, since it is smaller than the sum of its proper divisors (3304279350).

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

1520426250 is a wasteful number, since it uses less digits than its factorization.

1520426250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1520426250 is about 38992.6435369545. The cubic root of 1520426250 is about 1149.8868823835.

The spelling of 1520426250 in words is "one billion, five hundred twenty million, four hundred twenty-six thousand, two hundred fifty".