55001651 has 4 divisors (see below), whose sum is σ = 56039472. Its totient is φ = 53963832.

The previous prime is 55001627. The next prime is 55001659. The reversal of 55001651 is 15610055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55001651 - 2⁶ = 55001587 is a prime.

It is a super-2 number, since 2×55001651² = 6050363225451602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55001659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518831 + ... + 518936.

It is an arithmetic number, because the mean of its divisors is an integer number (14009868).

Almost surely, 2^55001651 is an apocalyptic number.

55001651 is a deficient number, since it is larger than the sum of its proper divisors (1037821).

55001651 is a wasteful number, since it uses less digits than its factorization.

55001651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037820.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 55001651 is about 7416.3097966576. The cubic root of 55001651 is about 380.2990512953.

The spelling of 55001651 in words is "fifty-five million, one thousand, six hundred fifty-one".