55402660151 has 4 divisors (see below), whose sum is σ = 56691094152. Its totient is φ = 54114226152.

The previous prime is 55402660133. The next prime is 55402660169. The reversal of 55402660151 is 15106620455.

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 (55402660133) and next prime (55402660169).

It is a cyclic number.

It is not a de Polignac number, because 55402660151 - 2²² = 55398465847 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 (55402660451) 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, 644216936 + ... + 644217021.

It is an arithmetic number, because the mean of its divisors is an integer number (14172773538).

Almost surely, 2^55402660151 is an apocalyptic number.

55402660151 is a deficient number, since it is larger than the sum of its proper divisors (1288434001).

55402660151 is a wasteful number, since it uses less digits than its factorization.

55402660151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288434000.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 55402660151 in words is "fifty-five billion, four hundred two million, six hundred sixty thousand, one hundred fifty-one".