125532440 has 32 divisors (see below), whose sum is σ = 308126160. Its totient is φ = 45648000.

The previous prime is 125532431. The next prime is 125532443. The reversal of 125532440 is 44235521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125532443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142211 + ... + 143090.

Almost surely, 2^125532440 is an apocalyptic number.

125532440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125532440 is an abundant number, since it is smaller than the sum of its proper divisors (182593720).

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

125532440 is a wasteful number, since it uses less digits than its factorization.

125532440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285323 (or 285319 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125532440 is about 11204.1260257103. The cubic root of 125532440 is about 500.7089144057.

Adding to 125532440 its reverse (44235521), we get a palindrome (169767961).

The spelling of 125532440 in words is "one hundred twenty-five million, five hundred thirty-two thousand, four hundred forty".