40005553551 has 8 divisors (see below), whose sum is σ = 53680488624. Its totient is φ = 26500493760.

The previous prime is 40005553547. The next prime is 40005553583. The reversal of 40005553551 is 15535550004.

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

It is not a de Polignac number, because 40005553551 - 2² = 40005553547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005553541) 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, 42468270 + ... + 42469211.

It is an arithmetic number, because the mean of its divisors is an integer number (6710061078).

Almost surely, 2^40005553551 is an apocalyptic number.

40005553551 is a deficient number, since it is larger than the sum of its proper divisors (13674935073).

40005553551 is a wasteful number, since it uses less digits than its factorization.

40005553551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84937641.

The product of its (nonzero) digits is 37500, while the sum is 33.

The spelling of 40005553551 in words is "forty billion, five million, five hundred fifty-three thousand, five hundred fifty-one".