53531453620557 has 16 divisors (see below), whose sum is σ = 86515480599360. Its totient is φ = 32443305224400.

The previous prime is 53531453620507. The next prime is 53531453620607. The reversal of 53531453620557 is 75502635413535.

53531453620557 is a `hidden beast` number, since 5 + 3 + 5 + 3 + 1 + 4 + 5 + 3 + 620 + 5 + 5 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (53531453620507) and next prime (53531453620607).

It is not a de Polignac number, because 53531453620557 - 2¹⁸ = 53531453358413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531453620507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90120291994 + ... + 90120292587.

It is an arithmetic number, because the mean of its divisors is an integer number (5407217537460).

Almost surely, 2^{53531453620557} is an apocalyptic number.

It is an amenable number.

53531453620557 is a deficient number, since it is larger than the sum of its proper divisors (32984026978803).

53531453620557 is a wasteful number, since it uses less digits than its factorization.

53531453620557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180240584601 (or 180240584595 counting only the distinct ones).

The product of its (nonzero) digits is 28350000, while the sum is 54.

The spelling of 53531453620557 in words is "fifty-three trillion, five hundred thirty-one billion, four hundred fifty-three million, six hundred twenty thousand, five hundred fifty-seven".