252142403540 has 96 divisors (see below), whose sum is σ = 544391971200. Its totient is φ = 98061166080.

The previous prime is 252142403537. The next prime is 252142403543. The reversal of 252142403540 is 45304241252.

It is an interprime number because it is at equal distance from previous prime (252142403537) and next prime (252142403543).

It is a junction number, because it is equal to n+sod(n) for n = 252142403497 and 252142403506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252142403543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88875002 + ... + 88877838.

It is an arithmetic number, because the mean of its divisors is an integer number (5670749700).

Almost surely, 2^252142403540 is an apocalyptic number.

252142403540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252142403540 is an abundant number, since it is smaller than the sum of its proper divisors (292249567660).

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

252142403540 is a wasteful number, since it uses less digits than its factorization.

252142403540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 252142403540 its reverse (45304241252), we get a palindrome (297446644792).

The spelling of 252142403540 in words is "two hundred fifty-two billion, one hundred forty-two million, four hundred three thousand, five hundred forty".