7551751322025 has 27 divisors (see below), whose sum is σ = 13526099532439. Its totient is φ = 4027578720720.

The previous prime is 7551751321999. The next prime is 7551751322039. The reversal of 7551751322025 is 5202231571557.

The square root of 7551751322025 is 2748045.

It is a perfect power (a square), and thus also a powerful number.

7551751322025 is a `hidden beast` number, since 7 + 551 + 7 + 51 + 3 + 2 + 20 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2718630475929 + 4833120846096 = 1648827^2 + 2198436^2 .

It is not a de Polignac number, because 7551751322025 - 2⁴¹ = 5352728066473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 41129074 + ... + 41312276.

Almost surely, 2^{7551751322025} is an apocalyptic number.

7551751322025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7551751322025 is the 2748045-th square number.

7551751322025 is the 1374023-rd centered octagonal number.

It is an amenable number.

7551751322025 is a deficient number, since it is larger than the sum of its proper divisors (5974348210414).

7551751322025 is an frugal number, since it uses more digits than its factorization.

7551751322025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366422 (or 183211 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 7551751322025 in words is "seven trillion, five hundred fifty-one billion, seven hundred fifty-one million, three hundred twenty-two thousand, twenty-five".