420140515525 has 24 divisors (see below), whose sum is σ = 524852434080. Its totient is φ = 333615723840.

The previous prime is 420140515513. The next prime is 420140515549. The reversal of 420140515525 is 525515041024.

It is not a de Polignac number, because 420140515525 - 2⁷ = 420140515397 is a prime.

It is a super-2 number, since 2×420140515525² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3083286 + ... + 3216664.

It is an arithmetic number, because the mean of its divisors is an integer number (21868851420).

Almost surely, 2^420140515525 is an apocalyptic number.

It is an amenable number.

420140515525 is a deficient number, since it is larger than the sum of its proper divisors (104711918555).

420140515525 is a wasteful number, since it uses less digits than its factorization.

420140515525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134325 (or 134320 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 420140515525 its reverse (525515041024), we get a palindrome (945655556549).

The spelling of 420140515525 in words is "four hundred twenty billion, one hundred forty million, five hundred fifteen thousand, five hundred twenty-five".