40125552 has 40 divisors (see below), whose sum is σ = 106191120. Its totient is φ = 13048320.

The previous prime is 40125541. The next prime is 40125581. The reversal of 40125552 is 25552104.

It is a happy number.

It is a super-2 number, since 2×40125552² = 3220119846609408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8227 + ... + 12162.

It is an arithmetic number, because the mean of its divisors is an integer number (2654778).

Almost surely, 2^40125552 is an apocalyptic number.

It is an amenable number.

40125552 is an abundant number, since it is smaller than the sum of its proper divisors (66065568).

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

40125552 is a wasteful number, since it uses less digits than its factorization.

40125552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20441 (or 20435 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 40125552 is about 6334.4733009146. The cubic root of 40125552 is about 342.3526337803.

Adding to 40125552 its reverse (25552104), we get a palindrome (65677656).

The spelling of 40125552 in words is "forty million, one hundred twenty-five thousand, five hundred fifty-two".