102553455 has 32 divisors (see below), whose sum is σ = 170726400. Its totient is φ = 52520832.

The previous prime is 102553447. The next prime is 102553457. The reversal of 102553455 is 554355201.

It is a happy number.

It is not a de Polignac number, because 102553455 - 2³ = 102553447 is a prime.

It is a super-2 number, since 2×102553455² = 21034422264874050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102553457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42676 + ... + 45014.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^102553455 is an apocalyptic number.

102553455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102553455 is a deficient number, since it is larger than the sum of its proper divisors (68172945).

102553455 is a wasteful number, since it uses less digits than its factorization.

102553455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 102553455 is about 10126.8679758354. The cubic root of 102553455 is about 468.0764220660.

The spelling of 102553455 in words is "one hundred two million, five hundred fifty-three thousand, four hundred fifty-five".