1025554552451 has 16 divisors (see below), whose sum is σ = 1218384931680. Its totient is φ = 850935486720.

The previous prime is 1025554552447. The next prime is 1025554552483. The reversal of 1025554552451 is 1542554555201.

It is a happy number.

It is not a de Polignac number, because 1025554552451 - 2² = 1025554552447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025554551451) 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, 40277780 + ... + 40303233.

It is an arithmetic number, because the mean of its divisors is an integer number (76149058230).

Almost surely, 2^{1025554552451} is an apocalyptic number.

1025554552451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1025554552451 is a deficient number, since it is larger than the sum of its proper divisors (192830379229).

1025554552451 is a wasteful number, since it uses less digits than its factorization.

1025554552451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80581126.

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 1025554552451 in words is "one trillion, twenty-five billion, five hundred fifty-four million, five hundred fifty-two thousand, four hundred fifty-one".