55154601421 has 32 divisors (see below), whose sum is σ = 62551802880. Its totient is φ = 48400934400.

The previous prime is 55154601413. The next prime is 55154601479. The reversal of 55154601421 is 12410645155.

It is not a de Polignac number, because 55154601421 - 2³ = 55154601413 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 (55154601221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1258351 + ... + 1301443.

It is an arithmetic number, because the mean of its divisors is an integer number (1954743840).

Almost surely, 2^55154601421 is an apocalyptic number.

It is an amenable number.

55154601421 is a deficient number, since it is larger than the sum of its proper divisors (7397201459).

55154601421 is a wasteful number, since it uses less digits than its factorization.

55154601421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43237.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 55154601421 in words is "fifty-five billion, one hundred fifty-four million, six hundred one thousand, four hundred twenty-one".