202501542420 has 144 divisors (see below), whose sum is σ = 651207019008. Its totient is φ = 50846019840.

The previous prime is 202501542409. The next prime is 202501542421. The reversal of 202501542420 is 24245105202.

202501542420 is a `hidden beast` number, since 20 + 250 + 154 + 242 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202501542421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 283954 + ... + 696873.

Almost surely, 2^202501542420 is an apocalyptic number.

202501542420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202501542420 is an abundant number, since it is smaller than the sum of its proper divisors (448705476588).

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

202501542420 is a wasteful number, since it uses less digits than its factorization.

202501542420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980910 (or 980905 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 202501542420 its reverse (24245105202), we get a palindrome (226746647622).

The spelling of 202501542420 in words is "two hundred two billion, five hundred one million, five hundred forty-two thousand, four hundred twenty".