80511425 has 12 divisors (see below), whose sum is σ = 100162860. Its totient is φ = 64197120.

The previous prime is 80511407. The next prime is 80511427. The reversal of 80511425 is 52411508.

It can be written as a sum of positive squares in 6 ways, for example, as 5740816 + 74770609 = 2396^2 + 8647^2 .

It is not a de Polignac number, because 80511425 - 2¹⁶ = 80445889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80511394 and 80511403.

It is not an unprimeable number, because it can be changed into a prime (80511427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2681 + ... + 12969.

It is an arithmetic number, because the mean of its divisors is an integer number (8346905).

Almost surely, 2^80511425 is an apocalyptic number.

It is an amenable number.

80511425 is a deficient number, since it is larger than the sum of its proper divisors (19651435).

80511425 is a wasteful number, since it uses less digits than its factorization.

80511425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612 (or 10607 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 80511425 is about 8972.8158902320. The cubic root of 80511425 is about 431.8031814482.

The spelling of 80511425 in words is "eighty million, five hundred eleven thousand, four hundred twenty-five".