40250655 has 16 divisors (see below), whose sum is σ = 71556960. Its totient is φ = 21466944.

The previous prime is 40250641. The next prime is 40250657. The reversal of 40250655 is 55605204.

40250655 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 0 + 655 = 666.

It is not a de Polignac number, because 40250655 - 2⁷ = 40250527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148942 + ... + 149211.

It is an arithmetic number, because the mean of its divisors is an integer number (4472310).

Almost surely, 2^40250655 is an apocalyptic number.

40250655 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40250655 is a deficient number, since it is larger than the sum of its proper divisors (31306305).

40250655 is a wasteful number, since it uses less digits than its factorization.

40250655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298167 (or 298161 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 40250655 is about 6344.3403912464. The cubic root of 40250655 is about 342.7080590676.

Adding to 40250655 its reverse (55605204), we get a palindrome (95855859).

The spelling of 40250655 in words is "forty million, two hundred fifty thousand, six hundred fifty-five".