232251531505240 has 64 divisors (see below), whose sum is σ = 574737014194560. Its totient is φ = 83929849674240.

The previous prime is 232251531505223. The next prime is 232251531505271. The reversal of 232251531505240 is 42505135152232.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 232251531505193 and 232251531505202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4751438971 + ... + 4751487850.

It is an arithmetic number, because the mean of its divisors is an integer number (8980265846790).

Almost surely, 2^{232251531505240} is an apocalyptic number.

232251531505240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232251531505240 is an abundant number, since it is smaller than the sum of its proper divisors (342485482689320).

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

232251531505240 is a wasteful number, since it uses less digits than its factorization.

232251531505240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9502926892 (or 9502926888 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 232251531505240 its reverse (42505135152232), we get a palindrome (274756666657472).

The spelling of 232251531505240 in words is "two hundred thirty-two trillion, two hundred fifty-one billion, five hundred thirty-one million, five hundred five thousand, two hundred forty".