1520103420250 has 128 divisors (see below), whose sum is σ = 3109859101440. Its totient is φ = 554171904000.

The previous prime is 1520103420203. The next prime is 1520103420259. The reversal of 1520103420250 is 520243010251.

It is a super-2 number, since 2×1520103420250² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1520103420259) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16755010 + ... + 16845490.

It is an arithmetic number, because the mean of its divisors is an integer number (24295774230).

Almost surely, 2^{1520103420250} is an apocalyptic number.

1520103420250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520103420250 is an abundant number, since it is smaller than the sum of its proper divisors (1589755681190).

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

1520103420250 is a wasteful number, since it uses less digits than its factorization.

1520103420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90641 (or 90631 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 1520103420250 in words is "one trillion, five hundred twenty billion, one hundred three million, four hundred twenty thousand, two hundred fifty".