55001402551 has 4 divisors (see below), whose sum is σ = 55043680104. Its totient is φ = 54959125000.

The previous prime is 55001402539. The next prime is 55001402563. The reversal of 55001402551 is 15520410055.

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

It is an interprime number because it is at equal distance from previous prime (55001402539) and next prime (55001402563).

It is a cyclic number.

It is not a de Polignac number, because 55001402551 - 2¹³ = 55001394359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55001403551) 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, 21136825 + ... + 21139426.

It is an arithmetic number, because the mean of its divisors is an integer number (13760920026).

Almost surely, 2^55001402551 is an apocalyptic number.

55001402551 is a deficient number, since it is larger than the sum of its proper divisors (42277553).

55001402551 is a wasteful number, since it uses less digits than its factorization.

55001402551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42277552.

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 55001402551 in words is "fifty-five billion, one million, four hundred two thousand, five hundred fifty-one".