1553052373 has 2 divisors, whose sum is σ = 1553052374. Its totient is φ = 1553052372.

The previous prime is 1553052311. The next prime is 1553052379. The reversal of 1553052373 is 3732503551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1454507044 + 98545329 = 38138^2 + 9927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553052373 - 2²¹ = 1550955221 is a prime.

It is a super-2 number, since 2×1553052373² = 4823943346561862258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553052379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776526186 + 776526187.

It is an arithmetic number, because the mean of its divisors is an integer number (776526187).

Almost surely, 2^1553052373 is an apocalyptic number.

It is an amenable number.

1553052373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553052373 is an equidigital number, since it uses as much as digits as its factorization.

1553052373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 1553052373 is about 39408.7854798901. The cubic root of 1553052373 is about 1158.0537053890.

The spelling of 1553052373 in words is "one billion, five hundred fifty-three million, fifty-two thousand, three hundred seventy-three".