2477251421 has 2 divisors, whose sum is σ = 2477251422. Its totient is φ = 2477251420.

The previous prime is 2477251327. The next prime is 2477251433. The reversal of 2477251421 is 1241527742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2258625625 + 218625796 = 47525^2 + 14786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2477251421 - 2¹⁴ = 2477235037 is a prime.

It is a super-2 number, since 2×2477251421² = 12273549205693038482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2477254421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1238625710 + 1238625711.

It is an arithmetic number, because the mean of its divisors is an integer number (1238625711).

Almost surely, 2^2477251421 is an apocalyptic number.

It is an amenable number.

2477251421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2477251421 is an equidigital number, since it uses as much as digits as its factorization.

2477251421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 35.

The square root of 2477251421 is about 49771.9943442093. The cubic root of 2477251421 is about 1353.0796489491.

The spelling of 2477251421 in words is "two billion, four hundred seventy-seven million, two hundred fifty-one thousand, four hundred twenty-one".