40525530400 has 36 divisors (see below), whose sum is σ = 98932953042. Its totient is φ = 16210211840.

The previous prime is 40525530389. The next prime is 40525530443. The reversal of 40525530400 is 403552504.

It can be written as a sum of positive squares in 3 ways, for example, as 38838949776 + 1686580624 = 197076^2 + 41068^2 .

It is a super-2 number, since 2×40525530400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25327657 + ... + 25329256.

Almost surely, 2^40525530400 is an apocalyptic number.

40525530400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40525530400 is an abundant number, since it is smaller than the sum of its proper divisors (58407422642).

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

40525530400 is a wasteful number, since it uses less digits than its factorization.

40525530400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50656933 (or 50656920 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The spelling of 40525530400 in words is "forty billion, five hundred twenty-five million, five hundred thirty thousand, four hundred".