125533340420 has 24 divisors (see below), whose sum is σ = 265000232448. Its totient is φ = 49950437600.

The previous prime is 125533340381. The next prime is 125533340441. The reversal of 125533340420 is 24043335521.

It is a super-4 number, since 4×125533340420⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16427246 + ... + 16434885.

It is an arithmetic number, because the mean of its divisors is an integer number (11041676352).

Almost surely, 2^125533340420 is an apocalyptic number.

125533340420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125533340420 is an abundant number, since it is smaller than the sum of its proper divisors (139466892028).

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

125533340420 is a wasteful number, since it uses less digits than its factorization.

125533340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32862331 (or 32862329 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 125533340420 its reverse (24043335521), we get a palindrome (149576675941).

The spelling of 125533340420 in words is "one hundred twenty-five billion, five hundred thirty-three million, three hundred forty thousand, four hundred twenty".