1653820057253 has 16 divisors (see below), whose sum is σ = 2064139451136. Its totient is φ = 1290087146880.

The previous prime is 1653820057189. The next prime is 1653820057259. The reversal of 1653820057253 is 3527500283561.

It is not a de Polignac number, because 1653820057253 - 2⁶ = 1653820057189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1653820057198 and 1653820057207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653820057259) 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, 127978376 + ... + 127991297.

It is an arithmetic number, because the mean of its divisors is an integer number (129008715696).

Almost surely, 2^{1653820057253} is an apocalyptic number.

1653820057253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1653820057253 is a deficient number, since it is larger than the sum of its proper divisors (410319393883).

1653820057253 is a wasteful number, since it uses less digits than its factorization.

1653820057253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255969764.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 1653820057253 in words is "one trillion, six hundred fifty-three billion, eight hundred twenty million, fifty-seven thousand, two hundred fifty-three".