155790433253 has 48 divisors (see below), whose sum is σ = 206294235840. Its totient is φ = 116288524800.

The previous prime is 155790433157. The next prime is 155790433273. The reversal of 155790433253 is 352334097551.

It is not a de Polignac number, because 155790433253 - 2⁸ = 155790432997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155790433198 and 155790433207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155790433273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2890118 + ... + 2943528.

It is an arithmetic number, because the mean of its divisors is an integer number (4297796580).

Almost surely, 2^155790433253 is an apocalyptic number.

155790433253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155790433253 is a deficient number, since it is larger than the sum of its proper divisors (50503802587).

155790433253 is a wasteful number, since it uses less digits than its factorization.

155790433253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53698 (or 53691 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 47.

The spelling of 155790433253 in words is "one hundred fifty-five billion, seven hundred ninety million, four hundred thirty-three thousand, two hundred fifty-three".