40005056251 has 8 divisors (see below), whose sum is σ = 42360052464. Its totient is φ = 37650255360.

The previous prime is 40005056249. The next prime is 40005056257. The reversal of 40005056251 is 15265050004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40005056251 - 2¹ = 40005056249 is a prime.

It is a super-5 number, since 5×40005056251⁵ (a number of 54 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (40005056257) 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, 709156 + ... + 763486.

It is an arithmetic number, because the mean of its divisors is an integer number (5295006558).

Almost surely, 2^40005056251 is an apocalyptic number.

40005056251 is a deficient number, since it is larger than the sum of its proper divisors (2354996213).

40005056251 is a wasteful number, since it uses less digits than its factorization.

40005056251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97661.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 40005056251 in words is "forty billion, five million, fifty-six thousand, two hundred fifty-one".